-3y+12=42

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Solution for -3y+12=42 equation: 


Simplifying
-3y + 12 = 42

Reorder the terms:
12 + -3y = 42

Solving
12 + -3y = 42

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -3y = 42 + -12

Combine like terms: 12 + -12 = 0
0 + -3y = 42 + -12
-3y = 42 + -12

Combine like terms: 42 + -12 = 30
-3y = 30

Divide each side by '-3'.
y = -10

Simplifying
y = -10

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