2X+(y+3)=30

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Solution for 2X+(y+3)=30 equation: 



2X+(X+3)=30

We move all terms to the left:

2X+(X+3)-(30)=0

We get rid of parentheses

2X+X+3-30=0

We add all the numbers together, and all the variables

3X-27=0

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

3X=27

X=27/3

X=9

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