x+0.21x=7

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Solution for x+0.21x=7 equation: 



x+0.21x=7

We move all terms to the left:

x+0.21x-(7)=0

We add all the numbers together, and all the variables

1.21x-7=0

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

1.21x=7

x=7/1.21

x=5+0.95/1.21

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