If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
3*(z-7)+(10*x)/y = 0
(3*y*(z-7))/y+(10*x)/y = 0
3*y*(z-7)+10*x = 0
10*x-21*y+3*y*z = 0
(10*x-21*y+3*y*z)/y = 0
(10*x-21*y+3*y*z)/y = 0 // * y
10*x-21*y+3*y*z = 0
10*x-21*y+3*y*z = 0 // - 3*y*z-21*y
10*x = -(3*y*z-21*y) // : 10
x = (-(3*y*z-21*y))/10
x = (-(3*y*z-21*y))/10
| -14=7-y | | 111=100+11 | | 10x+13-6x=14-x | | 1.6(7-x)=1.4(5-x) | | 5c^3+10c^2-40c=0 | | 2w^2+21w+54=0 | | 2x^2+19x+42=x^2+12x+36 | | 9t-4=11t-2 | | 2x+1=x-6 | | 6(-1/3) | | x+3k=18 | | 22=60/5+2 | | x^2+y^2-3y=0 | | (3x/5)+(x/2+15)+(x/2+15)=94 | | 4(x+4)=15 | | 4(14c-10d)-6(d+4c)= | | 50x^3+100x^2+48x=0 | | 0.11k+15=2.49 | | (7/8)-(1/3)n=.5n-.75 | | v^2+10v+25=2v^2+13v+15 | | 4(7+1)=40 | | 34=-7n-2-2n | | X-(-6)=13 | | 7(x+3)=8(x-1) | | 2/3(3g-2)=g/2 | | 12+(-3x+15)=12 | | 0.43=ln(y) | | 4(2n-1)=(6n+2)+2 | | 5b-1+12b+7=8b+9 | | 3g-6(g-80)=42 | | 9-12*x=60 | | 2x+13-3x+17= |