1.28=(x-30)/3.5

Solution for 1.28=(x-30)/3.5 equation:

1.28=(x-30)/3.5

We move all terms to the left:

1.28-((x-30)/3.5)=0

We multiply all the terms by the denominator


-((x-30)+(1.28)*3.5)=0


We calculate terms in parentheses: -((x-30)+(1.28)*3.5), so:

(x-30)+(1.28)*3.5

We add all the numbers together, and all the variables

(x-30)+4.48

We get rid of parentheses

x-30+4.48

We add all the numbers together, and all the variables

x-25.52

Back to the equation:

-(x-25.52)


We get rid of parentheses

-x+25.52=0

We add all the numbers together, and all the variables

-1x+25.52=0

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

-x=-25.52

x=-25.52/-1

x=25+0.52/1