7(6-3m)-5(m+2)=21

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Solution for 7(6-3m)-5(m+2)=21 equation:


Simplifying
7(6 + -3m) + -5(m + 2) = 21
(6 * 7 + -3m * 7) + -5(m + 2) = 21
(42 + -21m) + -5(m + 2) = 21

Reorder the terms:
42 + -21m + -5(2 + m) = 21
42 + -21m + (2 * -5 + m * -5) = 21
42 + -21m + (-10 + -5m) = 21

Reorder the terms:
42 + -10 + -21m + -5m = 21

Combine like terms: 42 + -10 = 32
32 + -21m + -5m = 21

Combine like terms: -21m + -5m = -26m
32 + -26m = 21

Solving
32 + -26m = 21

Solving for variable 'm'.

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

Add '-32' to each side of the equation.
32 + -32 + -26m = 21 + -32

Combine like terms: 32 + -32 = 0
0 + -26m = 21 + -32
-26m = 21 + -32

Combine like terms: 21 + -32 = -11
-26m = -11

Divide each side by '-26'.
m = 0.4230769231

Simplifying
m = 0.4230769231

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