-9=-2(8)+b

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Solution for -9=-2(8)+b equation: 


Simplifying
-9 = -2(8) + b

Multiply -2 * 8
-9 = -16 + b

Solving
-9 = -16 + 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.
-9 + -1b = -16 + b + -1b

Combine like terms: b + -1b = 0
-9 + -1b = -16 + 0
-9 + -1b = -16

Add '9' to each side of the equation.
-9 + 9 + -1b = -16 + 9

Combine like terms: -9 + 9 = 0
0 + -1b = -16 + 9
-1b = -16 + 9

Combine like terms: -16 + 9 = -7
-1b = -7

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

Simplifying
b = 7

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