-2.1=9.1+x/7

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Solution for -2.1=9.1+x/7 equation: 



-2.1=9.1+x/7

We move all terms to the left:

-2.1-(9.1+x/7)=0

We add all the numbers together, and all the variables

-(x/7+9.1)-2.1=0

We get rid of parentheses

-x/7-9.1-2.1=0

We multiply all the terms by the denominator


-x-(9.1)*7-(2.1)*7=0

We add all the numbers together, and all the variables

-1x-78.4=0

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

-x=78.4

x=78.4/-1

x=-78+0.4/1

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