8x-13=3(4+x)

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Solution for 8x-13=3(4+x) equation: 



8x-13=3(4+x)

We move all terms to the left:

8x-13-(3(4+x))=0

We add all the numbers together, and all the variables

8x-(3(x+4))-13=0



We calculate terms in parentheses: -(3(x+4)), so:

3(x+4)

We multiply parentheses

3x+12

Back to the equation:

-(3x+12)



We get rid of parentheses

8x-3x-12-13=0

We add all the numbers together, and all the variables

5x-25=0

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

5x=25

x=25/5

x=5

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