-6m+2(-7+m)=21+m

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Solution for -6m+2(-7+m)=21+m equation: 


Simplifying
-6m + 2(-7 + m) = 21 + m
-6m + (-7 * 2 + m * 2) = 21 + m
-6m + (-14 + 2m) = 21 + m

Reorder the terms:
-14 + -6m + 2m = 21 + m

Combine like terms: -6m + 2m = -4m
-14 + -4m = 21 + m

Solving
-14 + -4m = 21 + 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.
-14 + -4m + -1m = 21 + m + -1m

Combine like terms: -4m + -1m = -5m
-14 + -5m = 21 + m + -1m

Combine like terms: m + -1m = 0
-14 + -5m = 21 + 0
-14 + -5m = 21

Add '14' to each side of the equation.
-14 + 14 + -5m = 21 + 14

Combine like terms: -14 + 14 = 0
0 + -5m = 21 + 14
-5m = 21 + 14

Combine like terms: 21 + 14 = 35
-5m = 35

Divide each side by '-5'.
m = -7

Simplifying
m = -7

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