4+2.5=20-5.5x

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Solution for 4+2.5=20-5.5x equation: 



4+2.5=20-5.5x

We move all terms to the left:

4+2.5-(20-5.5x)=0

We add all the numbers together, and all the variables

-(-5.5x+20)+4+2.5=0

We add all the numbers together, and all the variables

-(-5.5x+20)+6.5=0

We get rid of parentheses

5.5x-20+6.5=0

We add all the numbers together, and all the variables

5.5x-13.5=0

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

5.5x=13.5

x=13.5/5.5

x=2+2.5/5.5

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