4b-4=21+3

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Solution for 4b-4=21+3 equation: 


Simplifying
4b + -4 = 21 + 3

Reorder the terms:
-4 + 4b = 21 + 3

Combine like terms: 21 + 3 = 24
-4 + 4b = 24

Solving
-4 + 4b = 24

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 + 4b = 24 + 4

Combine like terms: -4 + 4 = 0
0 + 4b = 24 + 4
4b = 24 + 4

Combine like terms: 24 + 4 = 28
4b = 28

Divide each side by '4'.
b = 7

Simplifying
b = 7

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