12.40=x(12.79)+(1-x)(14.54)

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Solution for 12.40=x(12.79)+(1-x)(14.54) equation: 



12.40=x(12.79)+(1-x)(14.54)

We move all terms to the left:

12.40-(x(12.79)+(1-x)(14.54))=0

We add all the numbers together, and all the variables

-(x(12.79)+(-1x+1)(14.54))+12.40=0

We add all the numbers together, and all the variables

-(x(12.79)+(-1x+1)(14.54))+12.4=0

We multiply parentheses ..

-(x(12.79)+(-14.54x+14.54))+12.4=0



We calculate terms in parentheses: -(x(12.79)+(-14.54x+14.54)), so:

x(12.79)+(-14.54x+14.54)

We multiply parentheses

12.79x+(-14.54x+14.54)

We get rid of parentheses

12.79x-14.54x+14.54

We add all the numbers together, and all the variables

-1.75x+14.54

Back to the equation:

-(-1.75x+14.54)



We get rid of parentheses

1.75x-14.54+12.4=0

We add all the numbers together, and all the variables

1.75x-2.14=0

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

1.75x=2.14

x=2.14/1.75

x=1+0.39/1.75

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