28=-3(21-m)+2(m-2)

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Solution for 28=-3(21-m)+2(m-2) equation:


Simplifying
28 = -3(21 + -1m) + 2(m + -2)
28 = (21 * -3 + -1m * -3) + 2(m + -2)
28 = (-63 + 3m) + 2(m + -2)

Reorder the terms:
28 = -63 + 3m + 2(-2 + m)
28 = -63 + 3m + (-2 * 2 + m * 2)
28 = -63 + 3m + (-4 + 2m)

Reorder the terms:
28 = -63 + -4 + 3m + 2m

Combine like terms: -63 + -4 = -67
28 = -67 + 3m + 2m

Combine like terms: 3m + 2m = 5m
28 = -67 + 5m

Solving
28 = -67 + 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.
28 + -5m = -67 + 5m + -5m

Combine like terms: 5m + -5m = 0
28 + -5m = -67 + 0
28 + -5m = -67

Add '-28' to each side of the equation.
28 + -28 + -5m = -67 + -28

Combine like terms: 28 + -28 = 0
0 + -5m = -67 + -28
-5m = -67 + -28

Combine like terms: -67 + -28 = -95
-5m = -95

Divide each side by '-5'.
m = 19

Simplifying
m = 19

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