85=5(b+4)

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Solution for 85=5(b+4) equation:


Simplifying
85 = 5(b + 4)

Reorder the terms:
85 = 5(4 + b)
85 = (4 * 5 + b * 5)
85 = (20 + 5b)

Solving
85 = 20 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
85 + -5b = 20 + 5b + -5b

Combine like terms: 5b + -5b = 0
85 + -5b = 20 + 0
85 + -5b = 20

Add '-85' to each side of the equation.
85 + -85 + -5b = 20 + -85

Combine like terms: 85 + -85 = 0
0 + -5b = 20 + -85
-5b = 20 + -85

Combine like terms: 20 + -85 = -65
-5b = -65

Divide each side by '-5'.
b = 13

Simplifying
b = 13

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