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(0.8+0.7)x/x=0.86
We move all terms to the left:
(0.8+0.7)x/x-(0.86)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
(1.5)x/x-(0.86)=0
We add all the numbers together, and all the variables
(1.5)x/x-0.86=0
We multiply all the terms by the denominator
(1.5)x-(0.86)*x=0
We multiply parentheses
1.5x-0.86x=0
We add all the numbers together, and all the variables
0.64x=0
x=0/0.64
x=0
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