20=-3b-2+1

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Solution for 20=-3b-2+1 equation:


Simplifying
20 = -3b + -2 + 1

Reorder the terms:
20 = -2 + 1 + -3b

Combine like terms: -2 + 1 = -1
20 = -1 + -3b

Solving
20 = -1 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
20 + 3b = -1 + -3b + 3b

Combine like terms: -3b + 3b = 0
20 + 3b = -1 + 0
20 + 3b = -1

Add '-20' to each side of the equation.
20 + -20 + 3b = -1 + -20

Combine like terms: 20 + -20 = 0
0 + 3b = -1 + -20
3b = -1 + -20

Combine like terms: -1 + -20 = -21
3b = -21

Divide each side by '3'.
b = -7

Simplifying
b = -7

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