7(x-1)=3x+9

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Solution for 7(x-1)=3x+9 equation: 



7(x-1)=3x+9

We move all terms to the left:

7(x-1)-(3x+9)=0

We multiply parentheses

7x-(3x+9)-7=0

We get rid of parentheses

7x-3x-9-7=0

We add all the numbers together, and all the variables

4x-16=0

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

4x=16

x=16/4

x=4

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