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84=7(m+3.4)
We move all terms to the left:
84-(7(m+3.4))=0
We calculate terms in parentheses: -(7(m+3.4)), so:We get rid of parentheses
7(m+3.4)
We multiply parentheses
7m+23.8
Back to the equation:
-(7m+23.8)
-7m-23.8+84=0
We add all the numbers together, and all the variables
-7m+60.2=0
We move all terms containing m to the left, all other terms to the right
-7m=-60.2
m=-60.2/-7
m=8+3.5/5.8333333333333
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