13-m=-4+m

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Solution for 13-m=-4+m equation:


Simplifying
13 + -1m = -4 + m

Solving
13 + -1m = -4 + 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.
13 + -1m + -1m = -4 + m + -1m

Combine like terms: -1m + -1m = -2m
13 + -2m = -4 + m + -1m

Combine like terms: m + -1m = 0
13 + -2m = -4 + 0
13 + -2m = -4

Add '-13' to each side of the equation.
13 + -13 + -2m = -4 + -13

Combine like terms: 13 + -13 = 0
0 + -2m = -4 + -13
-2m = -4 + -13

Combine like terms: -4 + -13 = -17
-2m = -17

Divide each side by '-2'.
m = 8.5

Simplifying
m = 8.5

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