21-3y+2y=15

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Solution for 21-3y+2y=15 equation:


21-3y+2y=15

We simplify the equation to the form, which is simple to understand 
21-3y+2y=15

We move all terms containing y to the left and all other terms to the right. 
-3y+2y=+15-21

We simplify left and right side of the equation. 
-1y=-6

We divide both sides of the equation by -1 to get y. 
y=6

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