21+6m=6+7(6m-3)

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Solution for 21+6m=6+7(6m-3) equation:


Simplifying
21 + 6m = 6 + 7(6m + -3)

Reorder the terms:
21 + 6m = 6 + 7(-3 + 6m)
21 + 6m = 6 + (-3 * 7 + 6m * 7)
21 + 6m = 6 + (-21 + 42m)

Combine like terms: 6 + -21 = -15
21 + 6m = -15 + 42m

Solving
21 + 6m = -15 + 42m

Solving for variable 'm'.

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

Add '-42m' to each side of the equation.
21 + 6m + -42m = -15 + 42m + -42m

Combine like terms: 6m + -42m = -36m
21 + -36m = -15 + 42m + -42m

Combine like terms: 42m + -42m = 0
21 + -36m = -15 + 0
21 + -36m = -15

Add '-21' to each side of the equation.
21 + -21 + -36m = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -36m = -15 + -21
-36m = -15 + -21

Combine like terms: -15 + -21 = -36
-36m = -36

Divide each side by '-36'.
m = 1

Simplifying
m = 1

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