7+3m=-m-13

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Solution for 7+3m=-m-13 equation:


Simplifying
7 + 3m = -1m + -13

Reorder the terms:
7 + 3m = -13 + -1m

Solving
7 + 3m = -13 + -1m

Solving for variable 'm'.

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

Add 'm' to each side of the equation.
7 + 3m + m = -13 + -1m + m

Combine like terms: 3m + m = 4m
7 + 4m = -13 + -1m + m

Combine like terms: -1m + m = 0
7 + 4m = -13 + 0
7 + 4m = -13

Add '-7' to each side of the equation.
7 + -7 + 4m = -13 + -7

Combine like terms: 7 + -7 = 0
0 + 4m = -13 + -7
4m = -13 + -7

Combine like terms: -13 + -7 = -20
4m = -20

Divide each side by '4'.
m = -5

Simplifying
m = -5

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