18y-3y=20-30

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Solution for 18y-3y=20-30 equation: 



18y-3y=20-30

We move all terms to the left:

18y-3y-(20-30)=0

We add all the numbers together, and all the variables

18y-3y-(-10)=0

We add all the numbers together, and all the variables

15y+10=0

We move all terms containing y to the left, all other terms to the right

15y=-10

y=-10/15

y=-2/3

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