45-5m+7m=4

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Solution for 45-5m+7m=4 equation: 


Simplifying
45 + -5m + 7m = 4

Combine like terms: -5m + 7m = 2m
45 + 2m = 4

Solving
45 + 2m = 4

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-45' to each side of the equation.
45 + -45 + 2m = 4 + -45

Combine like terms: 45 + -45 = 0
0 + 2m = 4 + -45
2m = 4 + -45

Combine like terms: 4 + -45 = -41
2m = -41

Divide each side by '2'.
m = -20.5

Simplifying
m = -20.5

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