9(m+5)-3(m-3)=8m+31

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Solution for 9(m+5)-3(m-3)=8m+31 equation:


Simplifying
9(m + 5) + -3(m + -3) = 8m + 31

Reorder the terms:
9(5 + m) + -3(m + -3) = 8m + 31
(5 * 9 + m * 9) + -3(m + -3) = 8m + 31
(45 + 9m) + -3(m + -3) = 8m + 31

Reorder the terms:
45 + 9m + -3(-3 + m) = 8m + 31
45 + 9m + (-3 * -3 + m * -3) = 8m + 31
45 + 9m + (9 + -3m) = 8m + 31

Reorder the terms:
45 + 9 + 9m + -3m = 8m + 31

Combine like terms: 45 + 9 = 54
54 + 9m + -3m = 8m + 31

Combine like terms: 9m + -3m = 6m
54 + 6m = 8m + 31

Reorder the terms:
54 + 6m = 31 + 8m

Solving
54 + 6m = 31 + 8m

Solving for variable 'm'.

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

Add '-8m' to each side of the equation.
54 + 6m + -8m = 31 + 8m + -8m

Combine like terms: 6m + -8m = -2m
54 + -2m = 31 + 8m + -8m

Combine like terms: 8m + -8m = 0
54 + -2m = 31 + 0
54 + -2m = 31

Add '-54' to each side of the equation.
54 + -54 + -2m = 31 + -54

Combine like terms: 54 + -54 = 0
0 + -2m = 31 + -54
-2m = 31 + -54

Combine like terms: 31 + -54 = -23
-2m = -23

Divide each side by '-2'.
m = 11.5

Simplifying
m = 11.5

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