4=13-m

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Solution for 4=13-m equation:


Simplifying
4 = 13 + -1m

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

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

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

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

Combine like terms: 13 + -4 = 9
m = 9

Simplifying
m = 9

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