15(b+2)+15+2b-9=90

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Solution for 15(b+2)+15+2b-9=90 equation: 


Simplifying
15(b + 2) + 15 + 2b + -9 = 90

Reorder the terms:
15(2 + b) + 15 + 2b + -9 = 90
(2 * 15 + b * 15) + 15 + 2b + -9 = 90
(30 + 15b) + 15 + 2b + -9 = 90

Reorder the terms:
30 + 15 + -9 + 15b + 2b = 90

Combine like terms: 30 + 15 = 45
45 + -9 + 15b + 2b = 90

Combine like terms: 45 + -9 = 36
36 + 15b + 2b = 90

Combine like terms: 15b + 2b = 17b
36 + 17b = 90

Solving
36 + 17b = 90

Solving for variable 'b'.

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

Add '-36' to each side of the equation.
36 + -36 + 17b = 90 + -36

Combine like terms: 36 + -36 = 0
0 + 17b = 90 + -36
17b = 90 + -36

Combine like terms: 90 + -36 = 54
17b = 54

Divide each side by '17'.
b = 3.176470588

Simplifying
b = 3.176470588

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