4m+7=m-8

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Solution for 4m+7=m-8 equation:


Simplifying
4m + 7 = m + -8

Reorder the terms:
7 + 4m = m + -8

Reorder the terms:
7 + 4m = -8 + m

Solving
7 + 4m = -8 + 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.
7 + 4m + -1m = -8 + m + -1m

Combine like terms: 4m + -1m = 3m
7 + 3m = -8 + m + -1m

Combine like terms: m + -1m = 0
7 + 3m = -8 + 0
7 + 3m = -8

Add '-7' to each side of the equation.
7 + -7 + 3m = -8 + -7

Combine like terms: 7 + -7 = 0
0 + 3m = -8 + -7
3m = -8 + -7

Combine like terms: -8 + -7 = -15
3m = -15

Divide each side by '3'.
m = -5

Simplifying
m = -5

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