3x-(x+5)=4(2x-20)

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Solution for 3x-(x+5)=4(2x-20) equation: 



3x-(x+5)=4(2x-20)

We move all terms to the left:

3x-(x+5)-(4(2x-20))=0

We get rid of parentheses

3x-x-(4(2x-20))-5=0



We calculate terms in parentheses: -(4(2x-20)), so:

4(2x-20)

We multiply parentheses

8x-80

Back to the equation:

-(8x-80)



We add all the numbers together, and all the variables

2x-(8x-80)-5=0

We get rid of parentheses

2x-8x+80-5=0

We add all the numbers together, and all the variables

-6x+75=0

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

-6x=-75

x=-75/-6

x=12+1/2

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