-15=30+3b

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Solution for -15=30+3b equation:


Simplifying
-15 = 30 + 3b

Solving
-15 = 30 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-15 + -3b = 30 + 3b + -3b

Combine like terms: 3b + -3b = 0
-15 + -3b = 30 + 0
-15 + -3b = 30

Add '15' to each side of the equation.
-15 + 15 + -3b = 30 + 15

Combine like terms: -15 + 15 = 0
0 + -3b = 30 + 15
-3b = 30 + 15

Combine like terms: 30 + 15 = 45
-3b = 45

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

Simplifying
b = -15

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