20=-3(22-b)+2(b-2)

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Solution for 20=-3(22-b)+2(b-2) equation:


Simplifying
20 = -3(22 + -1b) + 2(b + -2)
20 = (22 * -3 + -1b * -3) + 2(b + -2)
20 = (-66 + 3b) + 2(b + -2)

Reorder the terms:
20 = -66 + 3b + 2(-2 + b)
20 = -66 + 3b + (-2 * 2 + b * 2)
20 = -66 + 3b + (-4 + 2b)

Reorder the terms:
20 = -66 + -4 + 3b + 2b

Combine like terms: -66 + -4 = -70
20 = -70 + 3b + 2b

Combine like terms: 3b + 2b = 5b
20 = -70 + 5b

Solving
20 = -70 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
20 + -5b = -70 + 5b + -5b

Combine like terms: 5b + -5b = 0
20 + -5b = -70 + 0
20 + -5b = -70

Add '-20' to each side of the equation.
20 + -20 + -5b = -70 + -20

Combine like terms: 20 + -20 = 0
0 + -5b = -70 + -20
-5b = -70 + -20

Combine like terms: -70 + -20 = -90
-5b = -90

Divide each side by '-5'.
b = 18

Simplifying
b = 18

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