-42m-12=78

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Solution for -42m-12=78 equation: 


Simplifying
-42m + -12 = 78

Reorder the terms:
-12 + -42m = 78

Solving
-12 + -42m = 78

Solving for variable 'm'.

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

Add '12' to each side of the equation.
-12 + 12 + -42m = 78 + 12

Combine like terms: -12 + 12 = 0
0 + -42m = 78 + 12
-42m = 78 + 12

Combine like terms: 78 + 12 = 90
-42m = 90

Divide each side by '-42'.
m = -2.142857143

Simplifying
m = -2.142857143

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