-3b-15=12b+30

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


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

Reorder the terms:
-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 = 45
-15b = 45

Divide each side by '-15'.
b = -3

Simplifying
b = -3

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