20=5(3m+6)+8(m-7)

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Solution for 20=5(3m+6)+8(m-7) equation:


Simplifying
20 = 5(3m + 6) + 8(m + -7)

Reorder the terms:
20 = 5(6 + 3m) + 8(m + -7)
20 = (6 * 5 + 3m * 5) + 8(m + -7)
20 = (30 + 15m) + 8(m + -7)

Reorder the terms:
20 = 30 + 15m + 8(-7 + m)
20 = 30 + 15m + (-7 * 8 + m * 8)
20 = 30 + 15m + (-56 + 8m)

Reorder the terms:
20 = 30 + -56 + 15m + 8m

Combine like terms: 30 + -56 = -26
20 = -26 + 15m + 8m

Combine like terms: 15m + 8m = 23m
20 = -26 + 23m

Solving
20 = -26 + 23m

Solving for variable 'm'.

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

Add '-23m' to each side of the equation.
20 + -23m = -26 + 23m + -23m

Combine like terms: 23m + -23m = 0
20 + -23m = -26 + 0
20 + -23m = -26

Add '-20' to each side of the equation.
20 + -20 + -23m = -26 + -20

Combine like terms: 20 + -20 = 0
0 + -23m = -26 + -20
-23m = -26 + -20

Combine like terms: -26 + -20 = -46
-23m = -46

Divide each side by '-23'.
m = 2

Simplifying
m = 2

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