20=5-2.5x

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Solution for 20=5-2.5x equation: 



20=5-2.5x

We move all terms to the left:

20-(5-2.5x)=0

We add all the numbers together, and all the variables

-(-2.5x+5)+20=0

We get rid of parentheses

2.5x-5+20=0

We add all the numbers together, and all the variables

2.5x+15=0

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

2.5x=-15

x=-15/2.5

x=-6

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