-0.8x=10-0.9(x-7.9)

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Solution for -0.8x=10-0.9(x-7.9) equation: 



-0.8x=10-0.9(x-7.9)

We move all terms to the left:

-0.8x-(10-0.9(x-7.9))=0



We calculate terms in parentheses: -(10-0.9(x-7.9)), so:

10-0.9(x-7.9)

determiningTheFunctionDomain
-0.9(x-7.9)+10

We multiply parentheses

-0.9x+7.11+10

We add all the numbers together, and all the variables

-0.9x+17.11

Back to the equation:

-(-0.9x+17.11)



We get rid of parentheses

-0.8x+0.9x-17.11=0

We add all the numbers together, and all the variables

0.1x-17.11=0

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

0.1x=17.11

x=17.11/0.1

x=171+0.009999999999998/0.1

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