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

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



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

We move all terms to the left:

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

We multiply parentheses

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



We calculate terms in parentheses: -(4(x+9)), so:

4(x+9)

We multiply parentheses

4x+36

Back to the equation:

-(4x+36)



We get rid of parentheses

7x-4x-36-21=0

We add all the numbers together, and all the variables

3x-57=0

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

3x=57

x=57/3

x=19

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