-21-m=7(8m-3)

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Solution for -21-m=7(8m-3) equation:


Simplifying
-21 + -1m = 7(8m + -3)

Reorder the terms:
-21 + -1m = 7(-3 + 8m)
-21 + -1m = (-3 * 7 + 8m * 7)
-21 + -1m = (-21 + 56m)

Add '21' to each side of the equation.
-21 + 21 + -1m = -21 + 21 + 56m

Combine like terms: -21 + 21 = 0
0 + -1m = -21 + 21 + 56m
-1m = -21 + 21 + 56m

Combine like terms: -21 + 21 = 0
-1m = 0 + 56m
-1m = 56m

Solving
-1m = 56m

Solving for variable 'm'.

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

Add '-56m' to each side of the equation.
-1m + -56m = 56m + -56m

Combine like terms: -1m + -56m = -57m
-57m = 56m + -56m

Combine like terms: 56m + -56m = 0
-57m = 0

Divide each side by '-57'.
m = 0

Simplifying
m = 0

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