1.28=(x-100)/15

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Solution for 1.28=(x-100)/15 equation: 



1.28=(x-100)/15

We move all terms to the left:

1.28-((x-100)/15)=0

We multiply all the terms by the denominator


-((x-100)+(1.28)*15)=0



We calculate terms in parentheses: -((x-100)+(1.28)*15), so:

(x-100)+(1.28)*15

We add all the numbers together, and all the variables

(x-100)+19.2

We get rid of parentheses

x-100+19.2

We add all the numbers together, and all the variables

x-80.8

Back to the equation:

-(x-80.8)



We get rid of parentheses

-x+80.8=0

We add all the numbers together, and all the variables

-1x+80.8=0

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

-x=-80.8

x=-80.8/-1

x=80+0.8/1

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