20=15.40+1.64x

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Solution for 20=15.40+1.64x equation: 



20=15.40+1.64x

We move all terms to the left:

20-(15.40+1.64x)=0

We add all the numbers together, and all the variables

-(1.64x+15.4)+20=0

We get rid of parentheses

-1.64x-15.4+20=0

We add all the numbers together, and all the variables

-1.64x+4.6=0

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

-1.64x=-4.6

x=-4.6/-1.64

x=2+1/1.2424242424242

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