-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 = 15
-15b = 15

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

Simplifying
b = -1

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