4.21=2.98+d

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Solution for 4.21=2.98+d equation: 



4.21=2.98+d

We move all terms to the left:

4.21-(2.98+d)=0

We add all the numbers together, and all the variables

-(d+2.98)+4.21=0

We get rid of parentheses

-d-2.98+4.21=0

We add all the numbers together, and all the variables

-1d+1.23=0

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

-d=-1.23

d=-1.23/-1

d=1+0.23/1

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