15.4+x=21.1

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Solution for 15.4+x=21.1 equation: 



15.4+x=21.1

We move all terms to the left:

15.4+x-(21.1)=0

We add all the numbers together, and all the variables

x-5.7=0

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

x=5.7

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