-3=-9+b

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Solution for -3=-9+b equation: 


Simplifying
-3 = -9 + b

Solving
-3 = -9 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-3 + -1b = -9 + b + -1b

Combine like terms: b + -1b = 0
-3 + -1b = -9 + 0
-3 + -1b = -9

Add '3' to each side of the equation.
-3 + 3 + -1b = -9 + 3

Combine like terms: -3 + 3 = 0
0 + -1b = -9 + 3
-1b = -9 + 3

Combine like terms: -9 + 3 = -6
-1b = -6

Divide each side by '-1'.
b = 6

Simplifying
b = 6

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