3(a+5)=-4a+7

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Solution for 3(a+5)=-4a+7 equation: 



3(a+5)=-4a+7

We move all terms to the left:

3(a+5)-(-4a+7)=0

We multiply parentheses

3a-(-4a+7)+15=0

We get rid of parentheses

3a+4a-7+15=0

We add all the numbers together, and all the variables

7a+8=0

We move all terms containing a to the left, all other terms to the right

7a=-8

a=-8/7

a=-1+1/7

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