30=7x+9

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Solution for 30=7x+9 equation:


30=7x+9

We simplify the equation to the form, which is simple to understand 
30=7x+9

We move all terms containing x to the left and all other terms to the right. 
-7x=+9-30

We simplify left and right side of the equation. 
-7x=-21

We divide both sides of the equation by -07 to get x. 
x=3

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