b-1=2b-8

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Solution for b-1=2b-8 equation:


Simplifying
b + -1 = 2b + -8

Reorder the terms:
-1 + b = 2b + -8

Reorder the terms:
-1 + b = -8 + 2b

Solving
-1 + b = -8 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
-1 + b + -2b = -8 + 2b + -2b

Combine like terms: b + -2b = -1b
-1 + -1b = -8 + 2b + -2b

Combine like terms: 2b + -2b = 0
-1 + -1b = -8 + 0
-1 + -1b = -8

Add '1' to each side of the equation.
-1 + 1 + -1b = -8 + 1

Combine like terms: -1 + 1 = 0
0 + -1b = -8 + 1
-1b = -8 + 1

Combine like terms: -8 + 1 = -7
-1b = -7

Divide each side by '-1'.
b = 7

Simplifying
b = 7

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