21=3(22-m)+2(m-4)

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Solution for 21=3(22-m)+2(m-4) equation:


Simplifying
21 = 3(22 + -1m) + 2(m + -4)
21 = (22 * 3 + -1m * 3) + 2(m + -4)
21 = (66 + -3m) + 2(m + -4)

Reorder the terms:
21 = 66 + -3m + 2(-4 + m)
21 = 66 + -3m + (-4 * 2 + m * 2)
21 = 66 + -3m + (-8 + 2m)

Reorder the terms:
21 = 66 + -8 + -3m + 2m

Combine like terms: 66 + -8 = 58
21 = 58 + -3m + 2m

Combine like terms: -3m + 2m = -1m
21 = 58 + -1m

Solving
21 = 58 + -1m

Solving for variable 'm'.

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

Add 'm' to each side of the equation.
21 + m = 58 + -1m + m

Combine like terms: -1m + m = 0
21 + m = 58 + 0
21 + m = 58

Add '-21' to each side of the equation.
21 + -21 + m = 58 + -21

Combine like terms: 21 + -21 = 0
0 + m = 58 + -21
m = 58 + -21

Combine like terms: 58 + -21 = 37
m = 37

Simplifying
m = 37

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