7b-20=3b-12

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Solution for 7b-20=3b-12 equation:


Simplifying
7b + -20 = 3b + -12

Reorder the terms:
-20 + 7b = 3b + -12

Reorder the terms:
-20 + 7b = -12 + 3b

Solving
-20 + 7b = -12 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-20 + 7b + -3b = -12 + 3b + -3b

Combine like terms: 7b + -3b = 4b
-20 + 4b = -12 + 3b + -3b

Combine like terms: 3b + -3b = 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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