4b+4b-4=28

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Solution for 4b+4b-4=28 equation: 


Simplifying
4b + 4b + -4 = 28

Reorder the terms:
-4 + 4b + 4b = 28

Combine like terms: 4b + 4b = 8b
-4 + 8b = 28

Solving
-4 + 8b = 28

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 + 8b = 28 + 4

Combine like terms: -4 + 4 = 0
0 + 8b = 28 + 4
8b = 28 + 4

Combine like terms: 28 + 4 = 32
8b = 32

Divide each side by '8'.
b = 4

Simplifying
b = 4

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