-2x-6+9=90

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Solution for -2x-6+9=90 equation: 



-2x-6+9=90

We move all terms to the left:

-2x-6+9-(90)=0

We add all the numbers together, and all the variables

-2x-87=0

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

-2x=87

x=87/-2

x=-43+1/2

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