-12=45-3b

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Solution for -12=45-3b equation:


Simplifying
-12 = 45 + -3b

Solving
-12 = 45 + -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.
-12 + 3b = 45 + -3b + 3b

Combine like terms: -3b + 3b = 0
-12 + 3b = 45 + 0
-12 + 3b = 45

Add '12' to each side of the equation.
-12 + 12 + 3b = 45 + 12

Combine like terms: -12 + 12 = 0
0 + 3b = 45 + 12
3b = 45 + 12

Combine like terms: 45 + 12 = 57
3b = 57

Divide each side by '3'.
b = 19

Simplifying
b = 19

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