9b+20=5b+12

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Solution for 9b+20=5b+12 equation:


Simplifying
9b + 20 = 5b + 12

Reorder the terms:
20 + 9b = 5b + 12

Reorder the terms:
20 + 9b = 12 + 5b

Solving
20 + 9b = 12 + 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 + 9b + -5b = 12 + 5b + -5b

Combine like terms: 9b + -5b = 4b
20 + 4b = 12 + 5b + -5b

Combine like terms: 5b + -5b = 0
20 + 4b = 12 + 0
20 + 4b = 12

Add '-20' to each side of the equation.
20 + -20 + 4b = 12 + -20

Combine like terms: 20 + -20 = 0
0 + 4b = 12 + -20
4b = 12 + -20

Combine like terms: 12 + -20 = -8
4b = -8

Divide each side by '4'.
b = -2

Simplifying
b = -2

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