4x-15+20=90

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Solution for 4x-15+20=90 equation: 



4x-15+20=90

We move all terms to the left:

4x-15+20-(90)=0

We add all the numbers together, and all the variables

4x-85=0

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

4x=85

x=85/4

x=21+1/4

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