7b-7b+4b=20

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Solution for 7b-7b+4b=20 equation: 


Simplifying
7b + -7b + 4b = 20

Combine like terms: 7b + -7b = 0
0 + 4b = 20
4b = 20

Solving
4b = 20

Solving for variable 'b'.

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

Divide each side by '4'.
b = 5

Simplifying
b = 5

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