7x+13+6-1=90

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Solution for 7x+13+6-1=90 equation: 



7x+13+6-1=90

We move all terms to the left:

7x+13+6-1-(90)=0

We add all the numbers together, and all the variables

7x-72=0

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

7x=72

x=72/7

x=10+2/7

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