20.72=x+(2.47)(x-7)*(1-0.4)

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Solution for 20.72=x+(2.47)(x-7)*(1-0.4) equation: 



20.72=x+(2.47)(x-7)(1-0.4)

We move all terms to the left:

20.72-(x+(2.47)(x-7)(1-0.4))=0

We add all the numbers together, and all the variables

-(x+(2.47)(x-7)(0.6))+20.72=0

We multiply parentheses ..

-(x+(+2.47x-17.29)(0.6))+20.72=0



We calculate terms in parentheses: -(x+(+2.47x-17.29)(0.6)), so:

x+(+2.47x-17.29)(0.6)

We add all the numbers together, and all the variables

x+(2.47x-17.29)(0.6)

We multiply parentheses ..

x+(+1.2x-10.374)

We add all the numbers together, and all the variables

x+(1.2x-10.374)

We get rid of parentheses

x+1.2x-10.374

We add all the numbers together, and all the variables

2.2x-10.374

Back to the equation:

-(2.2x-10.374)



We get rid of parentheses

-2.2x+10.374+20.72=0

We add all the numbers together, and all the variables

-2.2x+31.094=0

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

-2.2x=-31.094

x=-31.094/-2.2

x=14+0.294/2.2

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