4x-9+4x=90

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



4x-9+4x=90

We move all terms to the left:

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

We add all the numbers together, and all the variables

8x-99=0

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

8x=99

x=99/8

x=12+3/8

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