(7x=2x+30)

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Solution for (7x=2x+30) equation: 



(7x=2x+30)

We move all terms to the left:

(7x-(2x+30))=0



We calculate terms in parentheses: +(7x-(2x+30)), so:

7x-(2x+30)

We get rid of parentheses

7x-2x-30

We add all the numbers together, and all the variables

5x-30

Back to the equation:

+(5x-30)



We get rid of parentheses

5x-30=0

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

5x=30

x=30/5

x=6

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