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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