3x+8.4=90

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Solution for 3x+8.4=90 equation: 



3x+8.4=90

We move all terms to the left:

3x+8.4-(90)=0

We add all the numbers together, and all the variables

3x-81.6=0

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

3x=81.6

x=81.6/3

x=27+0.59999999999999/3

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