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

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


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

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

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

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

Combine like terms: 15b + b = 16b
45 + 16b = 2b + -9

Reorder the terms:
45 + 16b = -9 + 2b

Solving
45 + 16b = -9 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
45 + 16b + -2b = -9 + 2b + -2b

Combine like terms: 16b + -2b = 14b
45 + 14b = -9 + 2b + -2b

Combine like terms: 2b + -2b = 0
45 + 14b = -9 + 0
45 + 14b = -9

Add '-45' to each side of the equation.
45 + -45 + 14b = -9 + -45

Combine like terms: 45 + -45 = 0
0 + 14b = -9 + -45
14b = -9 + -45

Combine like terms: -9 + -45 = -54
14b = -54

Divide each side by '14'.
b = -3.857142857

Simplifying
b = -3.857142857

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