20x-(3x-5)=90

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Solution for 20x-(3x-5)=90 equation: 



20x-(3x-5)=90

We move all terms to the left:

20x-(3x-5)-(90)=0

We get rid of parentheses

20x-3x+5-90=0

We add all the numbers together, and all the variables

17x-85=0

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

17x=85

x=85/17

x=5

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