21.3-x=-18.4

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Solution for 21.3-x=-18.4 equation: 



21.3-x=-18.4

We move all terms to the left:

21.3-x-(-18.4)=0

We add all the numbers together, and all the variables

-1x+39.7=0

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

-x=-39.7

x=-39.7/-1

x=39+0.7/1

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