45=9(b+15)

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Solution for 45=9(b+15) equation:


Simplifying
45 = 9(b + 15)

Reorder the terms:
45 = 9(15 + b)
45 = (15 * 9 + b * 9)
45 = (135 + 9b)

Solving
45 = 135 + 9b

Solving for variable 'b'.

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

Add '-9b' to each side of the equation.
45 + -9b = 135 + 9b + -9b

Combine like terms: 9b + -9b = 0
45 + -9b = 135 + 0
45 + -9b = 135

Add '-45' to each side of the equation.
45 + -45 + -9b = 135 + -45

Combine like terms: 45 + -45 = 0
0 + -9b = 135 + -45
-9b = 135 + -45

Combine like terms: 135 + -45 = 90
-9b = 90

Divide each side by '-9'.
b = -10

Simplifying
b = -10

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