9=1-3b-b

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Solution for 9=1-3b-b equation:


Simplifying
9 = 1 + -3b + -1b

Combine like terms: -3b + -1b = -4b
9 = 1 + -4b

Solving
9 = 1 + -4b

Solving for variable 'b'.

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

Add '4b' to each side of the equation.
9 + 4b = 1 + -4b + 4b

Combine like terms: -4b + 4b = 0
9 + 4b = 1 + 0
9 + 4b = 1

Add '-9' to each side of the equation.
9 + -9 + 4b = 1 + -9

Combine like terms: 9 + -9 = 0
0 + 4b = 1 + -9
4b = 1 + -9

Combine like terms: 1 + -9 = -8
4b = -8

Divide each side by '4'.
b = -2

Simplifying
b = -2

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