6.8x=+-3.9-(-8.9x-1)-2x

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Solution for 6.8x=+-3.9-(-8.9x-1)-2x equation: 



6.8x=+-3.9-(-8.9x-1)-2x

We move all terms to the left:

6.8x-(+-3.9-(-8.9x-1)-2x)=0

We use the square of the difference formula

6.8x-(-3.9-(-8.9x-1)-2x)=0



We calculate terms in parentheses: -(-3.9-(-8.9x-1)-2x), so:

-3.9-(-8.9x-1)-2x

determiningTheFunctionDomain
-(-8.9x-1)-2x-3.9

We add all the numbers together, and all the variables

-2x-(-8.9x-1)-3.9

We get rid of parentheses

-2x+8.9x+1-3.9

We add all the numbers together, and all the variables

6.9x-2.9

Back to the equation:

-(6.9x-2.9)



We get rid of parentheses

6.8x-6.9x+2.9=0

We add all the numbers together, and all the variables

-0.1x+2.9=0

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

-0.1x=-2.9

x=-2.9/-0.1

x=28+0.1/0.1

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