X+4x=4.2

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Solution for X+4x=4.2 equation: 



X+4X=4.2

We move all terms to the left:

X+4X-(4.2)=0

We add all the numbers together, and all the variables

5X-4.2=0

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

5X=4.2

X=4.2/5

X=3.5/4.16666666667

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