86.4=7.2(-1.3-1.9x)

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Solution for 86.4=7.2(-1.3-1.9x) equation: 



86.4=7.2(-1.3-1.9x)

We move all terms to the left:

86.4-(7.2(-1.3-1.9x))=0

We add all the numbers together, and all the variables

-(7.2(-1.9x-1.3))+86.4=0



We calculate terms in parentheses: -(7.2(-1.9x-1.3)), so:

7.2(-1.9x-1.3)

We multiply parentheses

-7.2x-9.36

Back to the equation:

-(-7.2x-9.36)



We get rid of parentheses

7.2x+9.36+86.4=0

We add all the numbers together, and all the variables

7.2x+95.76=0

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

7.2x=-95.76

x=-95.76/7.2

x=-13+2.16/7.2

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