3x-4+4x+9=90

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Solution for 3x-4+4x+9=90 equation: 



3x-4+4x+9=90

We move all terms to the left:

3x-4+4x+9-(90)=0

We add all the numbers together, and all the variables

7x-85=0

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

7x=85

x=85/7

x=12+1/7

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