13=x(-3)-4

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



13=x(-3)-4

We move all terms to the left:

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



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

x(-3)-4

We multiply parentheses

-3x-4

Back to the equation:

-(-3x-4)



We get rid of parentheses

3x+4+13=0

We add all the numbers together, and all the variables

3x+17=0

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

3x=-17

x=-17/3

x=-5+2/3

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