3(m+5)=21-5m

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


Simplifying
3(m + 5) = 21 + -5m

Reorder the terms:
3(5 + m) = 21 + -5m
(5 * 3 + m * 3) = 21 + -5m
(15 + 3m) = 21 + -5m

Solving
15 + 3m = 21 + -5m

Solving for variable 'm'.

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

Add '5m' to each side of the equation.
15 + 3m + 5m = 21 + -5m + 5m

Combine like terms: 3m + 5m = 8m
15 + 8m = 21 + -5m + 5m

Combine like terms: -5m + 5m = 0
15 + 8m = 21 + 0
15 + 8m = 21

Add '-15' to each side of the equation.
15 + -15 + 8m = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 8m = 21 + -15
8m = 21 + -15

Combine like terms: 21 + -15 = 6
8m = 6

Divide each side by '8'.
m = 0.75

Simplifying
m = 0.75

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