3a+2(8+a)=7(3a-1)+7

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Solution for 3a+2(8+a)=7(3a-1)+7 equation:



3a+2(8+a)=7(3a-1)+7
We move all terms to the left:
3a+2(8+a)-(7(3a-1)+7)=0
We add all the numbers together, and all the variables
3a+2(a+8)-(7(3a-1)+7)=0
We multiply parentheses
3a+2a-(7(3a-1)+7)+16=0
We calculate terms in parentheses: -(7(3a-1)+7), so:
7(3a-1)+7
We multiply parentheses
21a-7+7
We add all the numbers together, and all the variables
21a
Back to the equation:
-(21a)
We add all the numbers together, and all the variables
-16a+16=0
We move all terms containing a to the left, all other terms to the right
-16a=-16
a=-16/-16
a=1

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