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7.8(0.75m+0.4)=-6.4+(0.5m-0.8)
We move all terms to the left:
7.8(0.75m+0.4)-(-6.4+(0.5m-0.8))=0
We multiply parentheses
0m-(-6.4+(0.5m-0.8))+3.12=0
We calculate terms in parentheses: -(-6.4+(0.5m-0.8)), so:We add all the numbers together, and all the variables
-6.4+(0.5m-0.8)
determiningTheFunctionDomain (0.5m-0.8)-6.4
We get rid of parentheses
0.5m-0.8-6.4
We add all the numbers together, and all the variables
0.5m-7.2
Back to the equation:
-(0.5m-7.2)
m-(0.5m-7.2)+3.12=0
We get rid of parentheses
m-0.5m+7.2+3.12=0
We add all the numbers together, and all the variables
0.5m+10.32=0
We move all terms containing m to the left, all other terms to the right
0.5m=-10.32
m=-10.32/0.5
m=-20+0.32/0.5
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