-1(b-9)=9(-1)

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


Simplifying
-1(b + -9) = 9(-1)

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

Multiply 9 * -1
9 + -1b = -9

Solving
9 + -1b = -9

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 + -1b = -9 + -9

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

Combine like terms: -9 + -9 = -18
-1b = -18

Divide each side by '-1'.
b = 18

Simplifying
b = 18

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