123=-7(3-5m)=4

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Solution for 123=-7(3-5m)=4 equation: 



123=-7(3-5m)=4

We move all terms to the left:

123-(-7(3-5m))=0

We add all the numbers together, and all the variables

-(-7(-5m+3))+123=0



We calculate terms in parentheses: -(-7(-5m+3)), so:

-7(-5m+3)

We multiply parentheses

35m-21

Back to the equation:

-(35m-21)



We get rid of parentheses

-35m+21+123=0

We add all the numbers together, and all the variables

-35m+144=0

We move all terms containing m to the left, all other terms to the right

-35m=-144

m=-144/-35

m=4+4/35

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