3b-12=8-7b

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Solution for 3b-12=8-7b equation:


Simplifying
3b + -12 = 8 + -7b

Reorder the terms:
-12 + 3b = 8 + -7b

Solving
-12 + 3b = 8 + -7b

Solving for variable 'b'.

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

Add '7b' to each side of the equation.
-12 + 3b + 7b = 8 + -7b + 7b

Combine like terms: 3b + 7b = 10b
-12 + 10b = 8 + -7b + 7b

Combine like terms: -7b + 7b = 0
-12 + 10b = 8 + 0
-12 + 10b = 8

Add '12' to each side of the equation.
-12 + 12 + 10b = 8 + 12

Combine like terms: -12 + 12 = 0
0 + 10b = 8 + 12
10b = 8 + 12

Combine like terms: 8 + 12 = 20
10b = 20

Divide each side by '10'.
b = 2

Simplifying
b = 2

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