If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
7/6 = -15/x // + -15/x
7/6-(-15/x) = 0
15*x^-1+7/6 = 0
15*x^-1 = -7/6 // : 15
x^-1 = -7/90
-1 < 0
1/(x^1) = -7/90 // * x^1
1 = -7/90*x^1 // : -7/90
-90/7 = x^1
x = -90/7
x = -90/7
| x=y/b-15 | | 7(x+1)-4x(x+3)= | | 98.15-72.6= | | 9x+14-8x=-7-11 | | 9.26-6.35= | | 47.5(x)=95 | | 79y=26(3y+1) | | -5=u-7 | | 6=v-1 | | 2lne^5x= | | 2x-1=7x-11 | | 27=x(20) | | -6p+5.8=23.8 | | 39.14-4.2= | | 7385-67x=2650 | | 72=9+x+y | | 4(x)-7=7(x)+5 | | 43=37+x | | 6/8x1/5 | | 7X-4Y+Z=12 | | 3x+5=-72-8 | | 16x+16y=-16 | | 4(3-x)+24=8 | | 5y-2=-3y+5 | | 2x^2-44=3x^2-78 | | 3(x)+2=7 | | 2(5x-10)=-10 | | -s/3≥6 | | 46-3x=11-7x | | 3(x+12)=-4-5x-12x | | 3+9a=8+a | | 3(2+3)=2+13 |