2y-9+y=42

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Solution for 2y-9+y=42 equation: 


Simplifying
2y + -9 + y = 42

Reorder the terms:
-9 + 2y + y = 42

Combine like terms: 2y + y = 3y
-9 + 3y = 42

Solving
-9 + 3y = 42

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 3y = 42 + 9

Combine like terms: -9 + 9 = 0
0 + 3y = 42 + 9
3y = 42 + 9

Combine like terms: 42 + 9 = 51
3y = 51

Divide each side by '3'.
y = 17

Simplifying
y = 17

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