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2 years ago

13

ada writes 10 + 8 = 18 on the board . to use the commutative property of addition to rewrite ada's addition sentence. what numbe

r sentence should maria write ?

1 answer:

Mashcka [7]2 years ago

6 0

8+10 = 18 is what it is I'm pretty sure

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What is the value of x if g^x-1-2= 25?

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Answer:

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Step-by-step explanation:

<h3> The correct exercise is attached.</h3>

The equation given is:

$9^{x-1}-2=25$

The steps to find the value of "x" are shown below:

1. Add 2 to both sides of the equation:

$9^{x-1}-2+2=25+2\\\\9^{x-1}=27$

2. Descompose 9 and 27 into their prime factors:

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3. Substitute them into the equation:

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5. Apply Distributive property:

$2x-2=3$

6. Add 2 to both sides:

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7. Divide both sides of the equation by 2:

$\frac{2x}{2}=\frac{5}{2}\\\\x=\frac{5}{2}$

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