3(2-0.4y)=18

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Solution for 3(2-0.4y)=18 equation: 



3(2-0.4y)=18

We move all terms to the left:

3(2-0.4y)-(18)=0

We add all the numbers together, and all the variables

3(-0.4y+2)-18=0

We multiply parentheses

0y+6-18=0

We add all the numbers together, and all the variables

y-12=0

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

y=12

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