2a+7(3a-4)=-143

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Solution for 2a+7(3a-4)=-143 equation: 



2a+7(3a-4)=-143

We move all terms to the left:

2a+7(3a-4)-(-143)=0

We add all the numbers together, and all the variables

2a+7(3a-4)+143=0

We multiply parentheses

2a+21a-28+143=0

We add all the numbers together, and all the variables

23a+115=0

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

23a=-115

a=-115/23

a=-5

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