3x+13+5x+9=90

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Solution for 3x+13+5x+9=90 equation: 



3x+13+5x+9=90

We move all terms to the left:

3x+13+5x+9-(90)=0

We add all the numbers together, and all the variables

8x-68=0

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

8x=68

x=68/8

x=8+1/2

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