4y-12=42

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Solution for 4y-12=42 equation: 


Simplifying
4y + -12 = 42

Reorder the terms:
-12 + 4y = 42

Solving
-12 + 4y = 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 + 4y = 42 + 12

Combine like terms: -12 + 12 = 0
0 + 4y = 42 + 12
4y = 42 + 12

Combine like terms: 42 + 12 = 54
4y = 54

Divide each side by '4'.
y = 13.5

Simplifying
y = 13.5

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