7.9=4+0.65*x

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Solution for 7.9=4+0.65*x equation: 



7.9=4+0.65x

We move all terms to the left:

7.9-(4+0.65x)=0

We add all the numbers together, and all the variables

-(0.65x+4)+7.9=0

We get rid of parentheses

-0.65x-4+7.9=0

We add all the numbers together, and all the variables

-0.65x+3.9=0

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

-0.65x=-3.9

x=-3.9/-0.65

x=6+-4.4408920985006E-16/0.65

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