7x-3(x-13)=81-4x

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Solution for 7x-3(x-13)=81-4x equation: 



7x-3(x-13)=81-4x

We move all terms to the left:

7x-3(x-13)-(81-4x)=0

We add all the numbers together, and all the variables

7x-3(x-13)-(-4x+81)=0

We multiply parentheses

7x-3x-(-4x+81)+39=0

We get rid of parentheses

7x-3x+4x-81+39=0

We add all the numbers together, and all the variables

8x-42=0

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

8x=42

x=42/8

x=5+1/4

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