8m-20=3(3m-7)

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Solution for 8m-20=3(3m-7) equation:


Simplifying
8m + -20 = 3(3m + -7)

Reorder the terms:
-20 + 8m = 3(3m + -7)

Reorder the terms:
-20 + 8m = 3(-7 + 3m)
-20 + 8m = (-7 * 3 + 3m * 3)
-20 + 8m = (-21 + 9m)

Solving
-20 + 8m = -21 + 9m

Solving for variable 'm'.

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

Add '-9m' to each side of the equation.
-20 + 8m + -9m = -21 + 9m + -9m

Combine like terms: 8m + -9m = -1m
-20 + -1m = -21 + 9m + -9m

Combine like terms: 9m + -9m = 0
-20 + -1m = -21 + 0
-20 + -1m = -21

Add '20' to each side of the equation.
-20 + 20 + -1m = -21 + 20

Combine like terms: -20 + 20 = 0
0 + -1m = -21 + 20
-1m = -21 + 20

Combine like terms: -21 + 20 = -1
-1m = -1

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

Simplifying
m = 1

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