2.5-x=0.4

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Solution for 2.5-x=0.4 equation: 



2.5-x=0.4

We move all terms to the left:

2.5-x-(0.4)=0

We add all the numbers together, and all the variables

-1x+2.1=0

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

-x=-2.1

x=-2.1/-1

x=2+0.1/1

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