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Is 7 a solution for the equation 3(x + 4)= 2x - (-2x)?
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5 votes
Is 7 a solution for the equation 3(x + 4)= 2x - (-2x)?

User Method
by
5.2k points

2 Answers

2 votes

Answer:

no, the answer is x = 12

Explanation:

3(x + 4)= 2x - (-2x)

3(x + 4)= 2x + 2x

3x + 12 - 12 = 4x - 12

3x - 4x = 4x - 12 - 4x

-x = -12

x = 12

User Sam Dozor
by
5.5k points
1 vote

Explanation:

3x+12=2x+2x

3x+12=4x

3x-4x=-12

-x=-12

x=12

User Randerson
by
5.5k points
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