3b-4=7b+12

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Solution for 3b-4=7b+12 equation:


Simplifying
3b + -4 = 7b + 12

Reorder the terms:
-4 + 3b = 7b + 12

Reorder the terms:
-4 + 3b = 12 + 7b

Solving
-4 + 3b = 12 + 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.
-4 + 3b + -7b = 12 + 7b + -7b

Combine like terms: 3b + -7b = -4b
-4 + -4b = 12 + 7b + -7b

Combine like terms: 7b + -7b = 0
-4 + -4b = 12 + 0
-4 + -4b = 12

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

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

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

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

Simplifying
b = -4

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