7m-(3+m)+8-4m=9

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Solution for 7m-(3+m)+8-4m=9 equation:


Simplifying
7m + -1(3 + m) + 8 + -4m = 9
7m + (3 * -1 + m * -1) + 8 + -4m = 9
7m + (-3 + -1m) + 8 + -4m = 9

Reorder the terms:
-3 + 8 + 7m + -1m + -4m = 9

Combine like terms: -3 + 8 = 5
5 + 7m + -1m + -4m = 9

Combine like terms: 7m + -1m = 6m
5 + 6m + -4m = 9

Combine like terms: 6m + -4m = 2m
5 + 2m = 9

Solving
5 + 2m = 9

Solving for variable 'm'.

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

Add '-5' to each side of the equation.
5 + -5 + 2m = 9 + -5

Combine like terms: 5 + -5 = 0
0 + 2m = 9 + -5
2m = 9 + -5

Combine like terms: 9 + -5 = 4
2m = 4

Divide each side by '2'.
m = 2

Simplifying
m = 2

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