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Irina18 [472]
2 years ago
3

Ou know that a number 8 less than 60 is the number 52. so, you could rewrite your answer from the previous part as, "what number

can you multiply by 4 to get 52?" this is just the definition of 52 divided by 4! so, what is the number x you are looking for?
Mathematics
1 answer:
Rashid [163]2 years ago
5 0

For this case we define the following variable:

x: unknown number

We now write the equation that models the problem.

We have then:

4x = 52

From here, we clear the value of x:

x = \frac{52}{4}

x = 13

Therefore, the number we seek is equal to 13.

Answer:

The number we are looking for is equal to 13.

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Solve the system of equations – 5x + y = 56 and x + y = -4 by combining the<br> equations.
anygoal [31]

Answer:

Your solution is (-10, 6).

Step-by-step explanation:

Combining the equations is also known as substitution. This is done when you substitute one variable into another equation.

-5x + y = 56

x + y = -4

Let's change the second equation into one with one variable on each side.

y = -x - 4

Now, plug this into your first equation.

-5x + (-x - 4) = 56

Distribute the + sign.

-5x - x - 4 = 56

Combine the like terms.

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Isolate x by dividing both sides by -6.

x = -10

Now plug this back into either equation.

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Add 10 to both sides to find y.

y = 6

Your solution is (-10, 6).

Check this by plugging in these values into the equation you have not checked yet.

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56 = 56

Your solution is correct.

Hope this helps!

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1 year ago
Read 2 more answers
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Thus coordinates of R = (- 3.5, - 7 )

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