15.5=x+4

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Solution for 15.5=x+4 equation: 



15.5=x+4

We move all terms to the left:

15.5-(x+4)=0

We get rid of parentheses

-x-4+15.5=0

We add all the numbers together, and all the variables

-1x+11.5=0

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

-x=-11.5

x=-11.5/-1

x=11+0.5/1

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