If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
9*x+7 = 0
9*x+7 = 0
9*x+7 = 0
9*x+7 = 0 // - 7
9*x = -7 // : 9
x = -7/9
x in (-oo:-7/9) U (-7/9:+oo)
(13*x^3+10*x+23)/(9*x+7) = 0
13*x^3+10*x+23 = 0
13*x^3+10*x+23 = 0
{ 1, -1, 23, -23 }
1
x = 1
13*x^3+10*x+23 = 46
1
-1
x = -1
13*x^3+10*x+23 = 0
-1
x+1
13*x^2-13*x+23
13*x^3+10*x+23
x+1
-13*x^3-13*x^2
10*x-13*x^2+23
13*x^2+13*x
23*x+23
-23*x-23
0
13*x^2-13*x+23 = 0
DELTA = (-13)^2-(4*13*23)
DELTA = -1027
DELTA < 0
x in { -1}
x+1 = 0
(x+1)/(9*x+7) = 0
x+1 = 0 // - 1
x = -1
x = -1
| -5z+4=2z-10 | | a^2=14a | | u^2+2u+2=0 | | 3x^2+10=8 | | 8=2x+1 | | 8=(3x/2)+2 | | x*20*340/34*100=9 | | -6(7x+8)=-90 | | 8=(2x/3)+2 | | x+x+3+x+6=36 | | 10y+4y= | | -10+3x-4x=-8 | | 34(r+4/9)=2/3/4 | | 5x-4=7x+22 | | 6/x=0.12 | | .666x=60 | | (144/55)*(11/12) | | (144/55)+(11/12) | | x^2+4x-4=10 | | .5x=30 | | 24x=216 | | 3x-8=14,5 | | 3.2r-1.07=2.77 | | 1.1x-1.8=73 | | 3.3(1.2r+0.5)=9.87 | | x=-6graph | | ((x-4)(x+10))/2=4(x-4)^2 | | 5+7=37 | | x+x+x=84 | | 8y(2y-3)=3(5y-7) | | 2.4n+1.5=8.7 | | 7(s-3)+2(3s+6)=17 |