8+10m-1=7m+21-4m

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Solution for 8+10m-1=7m+21-4m equation:


Simplifying
8 + 10m + -1 = 7m + 21 + -4m

Reorder the terms:
8 + -1 + 10m = 7m + 21 + -4m

Combine like terms: 8 + -1 = 7
7 + 10m = 7m + 21 + -4m

Reorder the terms:
7 + 10m = 21 + 7m + -4m

Combine like terms: 7m + -4m = 3m
7 + 10m = 21 + 3m

Solving
7 + 10m = 21 + 3m

Solving for variable 'm'.

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

Add '-3m' to each side of the equation.
7 + 10m + -3m = 21 + 3m + -3m

Combine like terms: 10m + -3m = 7m
7 + 7m = 21 + 3m + -3m

Combine like terms: 3m + -3m = 0
7 + 7m = 21 + 0
7 + 7m = 21

Add '-7' to each side of the equation.
7 + -7 + 7m = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 7m = 21 + -7
7m = 21 + -7

Combine like terms: 21 + -7 = 14
7m = 14

Divide each side by '7'.
m = 2

Simplifying
m = 2

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