7(x+3)=4x+9

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Solution for 7(x+3)=4x+9 equation: 



7(x+3)=4x+9

We move all terms to the left:

7(x+3)-(4x+9)=0

We multiply parentheses

7x-(4x+9)+21=0

We get rid of parentheses

7x-4x-9+21=0

We add all the numbers together, and all the variables

3x+12=0

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

3x=-12

x=-12/3

x=-4

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