7x+(x+20)=18

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Solution for 7x+(x+20)=18 equation: 



7x+(x+20)=18

We move all terms to the left:

7x+(x+20)-(18)=0

We get rid of parentheses

7x+x+20-18=0

We add all the numbers together, and all the variables

8x+2=0

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

8x=-2

x=-2/8

x=-1/4

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