25=9-8b

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Solution for 25=9-8b equation:


Simplifying
25 = 9 + -8b

Solving
25 = 9 + -8b

Solving for variable 'b'.

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

Add '8b' to each side of the equation.
25 + 8b = 9 + -8b + 8b

Combine like terms: -8b + 8b = 0
25 + 8b = 9 + 0
25 + 8b = 9

Add '-25' to each side of the equation.
25 + -25 + 8b = 9 + -25

Combine like terms: 25 + -25 = 0
0 + 8b = 9 + -25
8b = 9 + -25

Combine like terms: 9 + -25 = -16
8b = -16

Divide each side by '8'.
b = -2

Simplifying
b = -2

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