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Gloria says the two expressions 1/4(12x + 24) - 9x and -6(x + 1) are equivalent. Is she correct? Explain why or why not.

2 Answers

1 vote
so first distribute
1/4(12x+24)=3x+8
so 3x+8-9x=8-6x

-6(x+1)=-6x-6
8-6x is not equal to -6-6x
so she is NOT correct, they are not equivilent
User Michael Heilemann
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4 votes
The first expression is equal to 3x + 24 - 9x, or 24 - 6x, and the second equation equals 6-6x. If you set them equal to eachother, you get 24 - 6x = 6 - 6x. The 6x's cancel out, so you're left with 24 = 6, which is not true. The expressions are not equivalent.
User Inbar
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8.0k points

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