8-2b-5b=-20

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Solution for 8-2b-5b=-20 equation: 


Simplifying
8 + -2b + -5b = -20

Combine like terms: -2b + -5b = -7b
8 + -7b = -20

Solving
8 + -7b = -20

Solving for variable 'b'.

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

Add '-8' to each side of the equation.
8 + -8 + -7b = -20 + -8

Combine like terms: 8 + -8 = 0
0 + -7b = -20 + -8
-7b = -20 + -8

Combine like terms: -20 + -8 = -28
-7b = -28

Divide each side by '-7'.
b = 4

Simplifying
b = 4

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