3y+15=42

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Solution for 3y+15=42 equation: 


Simplifying
3y + 15 = 42

Reorder the terms:
15 + 3y = 42

Solving
15 + 3y = 42

Solving for variable 'y'.

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

Add '-15' to each side of the equation.
15 + -15 + 3y = 42 + -15

Combine like terms: 15 + -15 = 0
0 + 3y = 42 + -15
3y = 42 + -15

Combine like terms: 42 + -15 = 27
3y = 27

Divide each side by '3'.
y = 9

Simplifying
y = 9

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