4b+2b-4=20

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Solution for 4b+2b-4=20 equation: 


Simplifying
4b + 2b + -4 = 20

Reorder the terms:
-4 + 4b + 2b = 20

Combine like terms: 4b + 2b = 6b
-4 + 6b = 20

Solving
-4 + 6b = 20

Solving for variable 'b'.

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

Add '4' to each side of the equation.
-4 + 4 + 6b = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 6b = 20 + 4
6b = 20 + 4

Combine like terms: 20 + 4 = 24
6b = 24

Divide each side by '6'.
b = 4

Simplifying
b = 4

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