7b-4b-b=20

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


Simplifying
7b + -4b + -1b = 20

Combine like terms: 7b + -4b = 3b
3b + -1b = 20

Combine like terms: 3b + -1b = 2b
2b = 20

Solving
2b = 20

Solving for variable 'b'.

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

Divide each side by '2'.
b = 10

Simplifying
b = 10

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