100-m=m-40

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Solution for 100-m=m-40 equation:


Simplifying
100 + -1m = m + -40

Reorder the terms:
100 + -1m = -40 + m

Solving
100 + -1m = -40 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
100 + -1m + -1m = -40 + m + -1m

Combine like terms: -1m + -1m = -2m
100 + -2m = -40 + m + -1m

Combine like terms: m + -1m = 0
100 + -2m = -40 + 0
100 + -2m = -40

Add '-100' to each side of the equation.
100 + -100 + -2m = -40 + -100

Combine like terms: 100 + -100 = 0
0 + -2m = -40 + -100
-2m = -40 + -100

Combine like terms: -40 + -100 = -140
-2m = -140

Divide each side by '-2'.
m = 70

Simplifying
m = 70

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