30-3y-9=20(3-3y)-9

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Solution for 30-3y-9=20(3-3y)-9 equation:



30-3y-9=20(3-3y)-9
We move all terms to the left:
30-3y-9-(20(3-3y)-9)=0
We add all the numbers together, and all the variables
-3y-(20(-3y+3)-9)+30-9=0
We add all the numbers together, and all the variables
-3y-(20(-3y+3)-9)+21=0
We calculate terms in parentheses: -(20(-3y+3)-9), so:
20(-3y+3)-9
We multiply parentheses
-60y+60-9
We add all the numbers together, and all the variables
-60y+51
Back to the equation:
-(-60y+51)
We get rid of parentheses
-3y+60y-51+21=0
We add all the numbers together, and all the variables
57y-30=0
We move all terms containing y to the left, all other terms to the right
57y=30
y=30/57
y=10/19

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