5(-4+2b)=-90

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Solution for 5(-4+2b)=-90 equation: 


Simplifying
5(-4 + 2b) = -90
(-4 * 5 + 2b * 5) = -90
(-20 + 10b) = -90

Solving
-20 + 10b = -90

Solving for variable 'b'.

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

Add '20' to each side of the equation.
-20 + 20 + 10b = -90 + 20

Combine like terms: -20 + 20 = 0
0 + 10b = -90 + 20
10b = -90 + 20

Combine like terms: -90 + 20 = -70
10b = -70

Divide each side by '10'.
b = -7

Simplifying
b = -7

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