9(b-1)=63

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Solution for 9(b-1)=63 equation: 


Simplifying
9(b + -1) = 63

Reorder the terms:
9(-1 + b) = 63
(-1 * 9 + b * 9) = 63
(-9 + 9b) = 63

Solving
-9 + 9b = 63

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 9b = 63 + 9

Combine like terms: -9 + 9 = 0
0 + 9b = 63 + 9
9b = 63 + 9

Combine like terms: 63 + 9 = 72
9b = 72

Divide each side by '9'.
b = 8

Simplifying
b = 8

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