7(2a+7)-3(1+5a)=54

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Solution for 7(2a+7)-3(1+5a)=54 equation: 



7(2a+7)-3(1+5a)=54

We move all terms to the left:

7(2a+7)-3(1+5a)-(54)=0

We add all the numbers together, and all the variables

7(2a+7)-3(5a+1)-54=0

We multiply parentheses

14a-15a+49-3-54=0

We add all the numbers together, and all the variables

-1a-8=0

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

-a=8

a=8/-1

a=-8

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