-(3b-15)=6(2b+3)

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Solution for -(3b-15)=6(2b+3) equation:


Simplifying
-1(3b + -15) = 6(2b + 3)

Reorder the terms:
-1(-15 + 3b) = 6(2b + 3)
(-15 * -1 + 3b * -1) = 6(2b + 3)
(15 + -3b) = 6(2b + 3)

Reorder the terms:
15 + -3b = 6(3 + 2b)
15 + -3b = (3 * 6 + 2b * 6)
15 + -3b = (18 + 12b)

Solving
15 + -3b = 18 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
15 + -3b + -12b = 18 + 12b + -12b

Combine like terms: -3b + -12b = -15b
15 + -15b = 18 + 12b + -12b

Combine like terms: 12b + -12b = 0
15 + -15b = 18 + 0
15 + -15b = 18

Add '-15' to each side of the equation.
15 + -15 + -15b = 18 + -15

Combine like terms: 15 + -15 = 0
0 + -15b = 18 + -15
-15b = 18 + -15

Combine like terms: 18 + -15 = 3
-15b = 3

Divide each side by '-15'.
b = -0.2

Simplifying
b = -0.2

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