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(3/10)x-1/5=-2
We move all terms to the left:
(3/10)x-1/5-(-2)=0
Domain of the equation: 10)x!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
(+3/10)x-1/5-(-2)=0
We add all the numbers together, and all the variables
(+3/10)x+2-1/5=0
We multiply parentheses
3x^2+2-1/5=0
We multiply all the terms by the denominator
3x^2*5-1+2*5=0
We add all the numbers together, and all the variables
3x^2*5+9=0
Wy multiply elements
15x^2+9=0
a = 15; b = 0; c = +9;
Δ = b2-4ac
Δ = 02-4·15·9
Δ = -540
Delta is less than zero, so there is no solution for the equation
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