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ASHA 777 [7]
2 years ago
5

Match each step to its justification to solve 2x+5=19

Mathematics
2 answers:
loris [4]2 years ago
6 0

The steps :

  • given
  • subtraction property of equality
  • subtract
  • division property of equality
  • divide
<h3>Further Explanation </h3>

One variable linear equation is an equation that has a variable and the exponent number is one. Can be stated in the form:

\large{\boxed{\bold{ax=b}}}

or

ax + b = c, where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

 \large{\boxed{\bold{ax+by=c}}}

ax + by = c

x, y = variable

There are 2 general steps to solving a linear equation of one variable:

  • 1. add or subtract both segments with the same number so that it is expected that in one segment there are only variable modifiers or constant numbers
  • 2. Change the equation into a simple form so that the coefficient of the variable is 1

This can be done by dividing or multiplying by equal numbers

An equation will remain equivalent if both segments are multiplied or divided by the same number

In the equation

2x + 5 = 19

The right steps to complete it according to the images included are:

  • 1. 2x + 5 = 9 ⇒ given
  • 2. both segments are subtracted by the number 5

 2x + 5 -5 = 9-5  ⇒subtraction property of equality

  • 3. 2x = 14  ⇒subtract
  • 4. both segments are divided by 2 so that the coefficient x = 1

{\displaystyle  {\frac {2x} {2}}=~\frac{14}{2}

⇒division property of equality

  • 5. x = 7 ⇒ divide

<h3>Learn more </h3>

the slope-intercept form of the linear equation

brainly.com/question/1945934

a graph of a linear equation

brainly.com/question/1505806

system of linear equations

brainly.com/question/11544167

Keywords: variable, linear equation

Nataliya [291]2 years ago
5 0
It is the steps to get to that certain step
some of the steps are out of order
I'm going to assign letters

the order is
A: 2x+5=19
B: 2x+5-5=19-5
C: 2x=14
D: 2x/2=14/2
E: x=7


A: given
B: we subtracted 5 from both sides so subtraction property of equality
C: subtract
D: divison property of equality (we divide both side by 2)
E: divide
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Step-by-step explanation:

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Triple my number add six and subtract my number twice I get my number plus three
liberstina [14]
Let the number be x.

Triple the number means 3x
add 6 means 3x + 6
subtract the number twice 3x + 6 - x - x
the result is the number plus 3 means that the result is x + 3

So, combining these into an equation, we get:
3x + 6 - x - x = x + 3

If we solve this equation for x, we will get:
x + 6 = x + 3
The x will cancel out and we will get : 6 = 3

Therefore, this is a false statement.
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2 years ago
Jack works as a waiter and is keeping track of the tips he earns daily. About how much does Jack have to earn in tips on
Ray Of Light [21]

Answer:

25$

Step-by-step explanation:

Add all of the days up and divide by 7

7 0
2 years ago
Tony has $20. He wants to buy at least 4
zavuch27 [327]

Tony has $20. He wants to buy at least 4

snacks. Hot dogs (x) are $3 each.

Peanuts (y) are $2 each.​

Answer:

To solve the above question, we use the below inequality equations

x + y ≥ 4 snacks .........Inequality equation 1

3x + 2y ≤ $20 ..........Inequality equation 2

Step-by-step explanation:

We can make use of the inequality equations

Hot dogs = (x) are $3 each.

Peanuts = (y) are $2 each.​

He wants to buy at least 4

x + y ≥ 4 snacks .........Inequality equation 1

3x + 2y ≤ $20 ..........Inequality equation 2

From the above inequality equations, Tony can buy at least 4 snacks but he can only spend $20.

Let take a random number, where x = 4, and y = 4. This means Tony can buy

a) 4($3) + 4($2) = 12 + 8 = $20

The total number of snacks = 4 + 4 = 8 snacks.

b)

This answer above confirms the inequality equations 1 and 2

x + y ≥ 4 snacks .........Inequality equation 1

8 snacks ≥ 4 snacks

3x + 2y ≤ $20 ..........Inequality equation 2

$20 ≤ $20

6 0
2 years ago
Adjust to compatible numbers that count by 25s, and then subtract to estimate the difference. 252 - 23 =
pantera1 [17]

Answer:

                    252

                     

      l----------l----------l----------l                       252 changes to 250

  225       250      275      300      

                    23

            l----------l---------l---------l                     25 changes to  23

            0         25         50       75

   250-25=225

Step-by-step explanation:

4 0
2 years ago
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