9b-8=4b+12

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Solution for 9b-8=4b+12 equation:


Simplifying
9b + -8 = 4b + 12

Reorder the terms:
-8 + 9b = 4b + 12

Reorder the terms:
-8 + 9b = 12 + 4b

Solving
-8 + 9b = 12 + 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
-8 + 9b + -4b = 12 + 4b + -4b

Combine like terms: 9b + -4b = 5b
-8 + 5b = 12 + 4b + -4b

Combine like terms: 4b + -4b = 0
-8 + 5b = 12 + 0
-8 + 5b = 12

Add '8' to each side of the equation.
-8 + 8 + 5b = 12 + 8

Combine like terms: -8 + 8 = 0
0 + 5b = 12 + 8
5b = 12 + 8

Combine like terms: 12 + 8 = 20
5b = 20

Divide each side by '5'.
b = 4

Simplifying
b = 4

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