3b-12=b+4

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Solution for 3b-12=b+4 equation:


Simplifying
3b + -12 = b + 4

Reorder the terms:
-12 + 3b = b + 4

Reorder the terms:
-12 + 3b = 4 + b

Solving
-12 + 3b = 4 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-12 + 3b + -1b = 4 + b + -1b

Combine like terms: 3b + -1b = 2b
-12 + 2b = 4 + b + -1b

Combine like terms: b + -1b = 0
-12 + 2b = 4 + 0
-12 + 2b = 4

Add '12' to each side of the equation.
-12 + 12 + 2b = 4 + 12

Combine like terms: -12 + 12 = 0
0 + 2b = 4 + 12
2b = 4 + 12

Combine like terms: 4 + 12 = 16
2b = 16

Divide each side by '2'.
b = 8

Simplifying
b = 8

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