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LOOK AT PHOTO PLEASE ANSWER!

LOOK AT PHOTO PLEASE ANSWER!-example-1
User Adam Prout
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1 Answer

9 votes

Answer:

Explanation:

The error occured where the distributive property was applied. 3 × -4 should give us -12 not +12.

Here's the correct way to solve the equation

3(x - 4) = -9

3x - 12 = -9 (distributive property)

3x - 12 + 12 = -9 + 12 (addition property of equality)

3x = 3

3x/3 = 3/3 (division property of equality)

x = 1

User Marek Raki
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6.8k points