20=5(m-3)+4(m-3)

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Solution for 20=5(m-3)+4(m-3) equation:


Simplifying
20 = 5(m + -3) + 4(m + -3)

Reorder the terms:
20 = 5(-3 + m) + 4(m + -3)
20 = (-3 * 5 + m * 5) + 4(m + -3)
20 = (-15 + 5m) + 4(m + -3)

Reorder the terms:
20 = -15 + 5m + 4(-3 + m)
20 = -15 + 5m + (-3 * 4 + m * 4)
20 = -15 + 5m + (-12 + 4m)

Reorder the terms:
20 = -15 + -12 + 5m + 4m

Combine like terms: -15 + -12 = -27
20 = -27 + 5m + 4m

Combine like terms: 5m + 4m = 9m
20 = -27 + 9m

Solving
20 = -27 + 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 + -9m = -27 + 9m + -9m

Combine like terms: 9m + -9m = 0
20 + -9m = -27 + 0
20 + -9m = -27

Add '-20' to each side of the equation.
20 + -20 + -9m = -27 + -20

Combine like terms: 20 + -20 = 0
0 + -9m = -27 + -20
-9m = -27 + -20

Combine like terms: -27 + -20 = -47
-9m = -47

Divide each side by '-9'.
m = 5.222222222

Simplifying
m = 5.222222222

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