y+2y=-15

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Solution for y+2y=-15 equation: 


Simplifying
y + 2y = -15

Combine like terms: y + 2y = 3y
3y = -15

Solving
3y = -15

Solving for variable 'y'.

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

Divide each side by '3'.
y = -5

Simplifying
y = -5

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