7x=2(9-x)

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Solution for 7x=2(9-x) equation: 



7x=2(9-x)

We move all terms to the left:

7x-(2(9-x))=0

We add all the numbers together, and all the variables

7x-(2(-1x+9))=0



We calculate terms in parentheses: -(2(-1x+9)), so:

2(-1x+9)

We multiply parentheses

-2x+18

Back to the equation:

-(-2x+18)



We get rid of parentheses

7x+2x-18=0

We add all the numbers together, and all the variables

9x-18=0

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

9x=18

x=18/9

x=2

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