2m+5m-7=42

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Solution for 2m+5m-7=42 equation: 


Simplifying
2m + 5m + -7 = 42

Reorder the terms:
-7 + 2m + 5m = 42

Combine like terms: 2m + 5m = 7m
-7 + 7m = 42

Solving
-7 + 7m = 42

Solving for variable 'm'.

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

Add '7' to each side of the equation.
-7 + 7 + 7m = 42 + 7

Combine like terms: -7 + 7 = 0
0 + 7m = 42 + 7
7m = 42 + 7

Combine like terms: 42 + 7 = 49
7m = 49

Divide each side by '7'.
m = 7

Simplifying
m = 7

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