x/7-5/x=-2/7

Simple and best practice solution for x/7-5/x=-2/7 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x/7-5/x=-2/7 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

x/7-(5/x) = -2/7 // + -2/7

x/7-(5/x)-(-2/7) = 0

x/7-5*x^-1+2/7 = 0

1/7*x^1-5*x^-1+2/7*x^0 = 0

(1/7*x^2+2/7*x^1-5*x^0)/(x^1) = 0 // * x^2

x^1*(1/7*x^2+2/7*x^1-5*x^0) = 0

x^1

(1/7)*x^2+(2/7)*x-5 = 0

(1/7)*x^2+(2/7)*x-5 = 0

DELTA = (2/7)^2-(-5*4*(1/7))

DELTA = 144/49

DELTA > 0

x = ((144/49)^(1/2)-(2/7))/(2*(1/7)) or x = (-(2/7)-(144/49)^(1/2))/(2*(1/7))

x = 5 or x = -7

x in { -7, 5} 

x in { -7, 5 }

See similar equations:

| 11r+60= | | 13y+25=64,4y-7 | | -5(3-2x)=-5(2x-5) | | 6h-2=38 | | 6(z+3)-15=8z-5+2z | | 2(3x-4)-8x+3= | | (30s+5)=(20s+20) | | 20y+3=105 | | 6x-6=x-9 | | 14y-6+7y=4+10y-10 | | 2n-(n-5)=15 | | 7m-3=53,11m+2 | | 3u-1=20 | | y=2x+6/5 | | 6-3(2g+4)4g=5(1-2g) | | 30s+5=20s+20 | | J/18-2/9=1/9 | | x=102/3 | | 87859.2/703=x | | (4/2x)+5 | | 2+13p=-p-4(-9p/4+1) | | 3x+13x-10=0 | | 8*5/6 | | 32-3x=44 | | (7p+8)/9=0.6(p+8) | | -88=-4(8-2x) | | 3/8x=4 | | 10/28-7h | | x^4+16x+32(x+4)+16=0 | | -5x-7=-52 | | 4/3(3.14)(16)(16)(16) | | 4.71x-4.82+5.4=2.11x+2.98 |

Equations solver categories