9=y+3y

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Solution for 9=y+3y equation:



9=y+3y
We move all terms to the left:
9-(y+3y)=0
We add all the numbers together, and all the variables
-(+4y)+9=0
We get rid of parentheses
-4y+9=0
We move all terms containing y to the left, all other terms to the right
-4y=-9
y=-9/-4
y=2+1/4

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