-(3b-15)=12b+30

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Solution for -(3b-15)=12b+30 equation:


Simplifying
-1(3b + -15) = 12b + 30

Reorder the terms:
-1(-15 + 3b) = 12b + 30
(-15 * -1 + 3b * -1) = 12b + 30
(15 + -3b) = 12b + 30

Reorder the terms:
15 + -3b = 30 + 12b

Solving
15 + -3b = 30 + 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 = 30 + 12b + -12b

Combine like terms: -3b + -12b = -15b
15 + -15b = 30 + 12b + -12b

Combine like terms: 12b + -12b = 0
15 + -15b = 30 + 0
15 + -15b = 30

Add '-15' to each side of the equation.
15 + -15 + -15b = 30 + -15

Combine like terms: 15 + -15 = 0
0 + -15b = 30 + -15
-15b = 30 + -15

Combine like terms: 30 + -15 = 15
-15b = 15

Divide each side by '-15'.
b = -1

Simplifying
b = -1

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