90=3b-1

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Solution for 90=3b-1 equation:


Simplifying
90 = 3b + -1

Reorder the terms:
90 = -1 + 3b

Solving
90 = -1 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
90 + -3b = -1 + 3b + -3b

Combine like terms: 3b + -3b = 0
90 + -3b = -1 + 0
90 + -3b = -1

Add '-90' to each side of the equation.
90 + -90 + -3b = -1 + -90

Combine like terms: 90 + -90 = 0
0 + -3b = -1 + -90
-3b = -1 + -90

Combine like terms: -1 + -90 = -91
-3b = -91

Divide each side by '-3'.
b = 30.33333333

Simplifying
b = 30.33333333

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