11x-3+9x+13=90

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Solution for 11x-3+9x+13=90 equation: 



11x-3+9x+13=90

We move all terms to the left:

11x-3+9x+13-(90)=0

We add all the numbers together, and all the variables

20x-80=0

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

20x=80

x=80/20

x=4

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