7(3a+4)=5(3a-7)-1

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Solution for 7(3a+4)=5(3a-7)-1 equation:



7(3a+4)=5(3a-7)-1
We move all terms to the left:
7(3a+4)-(5(3a-7)-1)=0
We multiply parentheses
21a-(5(3a-7)-1)+28=0
We calculate terms in parentheses: -(5(3a-7)-1), so:
5(3a-7)-1
We multiply parentheses
15a-35-1
We add all the numbers together, and all the variables
15a-36
Back to the equation:
-(15a-36)
We get rid of parentheses
21a-15a+36+28=0
We add all the numbers together, and all the variables
6a+64=0
We move all terms containing a to the left, all other terms to the right
6a=-64
a=-64/6
a=-10+2/3

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