90=5(4+2b)

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


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

Solving
90 = 20 + 10b

Solving for variable 'b'.

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

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

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

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

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

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

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

Simplifying
b = 7

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