80=17+7b

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Solution for 80=17+7b equation:


Simplifying
80 = 17 + 7b

Solving
80 = 17 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
80 + -7b = 17 + 7b + -7b

Combine like terms: 7b + -7b = 0
80 + -7b = 17 + 0
80 + -7b = 17

Add '-80' to each side of the equation.
80 + -80 + -7b = 17 + -80

Combine like terms: 80 + -80 = 0
0 + -7b = 17 + -80
-7b = 17 + -80

Combine like terms: 17 + -80 = -63
-7b = -63

Divide each side by '-7'.
b = 9

Simplifying
b = 9

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