3y-20=6(18)+7

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Solution for 3y-20=6(18)+7 equation: 



3y-20=6(18)+7

We move all terms to the left:

3y-20-(6(18)+7)=0

We add all the numbers together, and all the variables

3y-20-625=0

We add all the numbers together, and all the variables

3y-645=0

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

3y=645

y=645/3

y=215

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