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5(4a+2)-3(5a-3)=7(2a-7)-5(7a-6)+9a
We move all terms to the left:
5(4a+2)-3(5a-3)-(7(2a-7)-5(7a-6)+9a)=0
We multiply parentheses
20a-15a-(7(2a-7)-5(7a-6)+9a)+10+9=0
We calculate terms in parentheses: -(7(2a-7)-5(7a-6)+9a), so:We add all the numbers together, and all the variables
7(2a-7)-5(7a-6)+9a
We add all the numbers together, and all the variables
9a+7(2a-7)-5(7a-6)
We multiply parentheses
9a+14a-35a-49+30
We add all the numbers together, and all the variables
-12a-19
Back to the equation:
-(-12a-19)
5a-(-12a-19)+19=0
We get rid of parentheses
5a+12a+19+19=0
We add all the numbers together, and all the variables
17a+38=0
We move all terms containing a to the left, all other terms to the right
17a=-38
a=-38/17
a=-2+4/17
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