If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
(-3/5)*y-((1/6)*y) = 690 // - 690
(-3/5)*y-((1/6)*y)-690 = 0
(-3/5)*y+(-1/6)*y-690 = 0
-23/30*y-690 = 0 // + 690
-23/30*y = 690 // : -23/30
y = 690/(-23/30)
y = -900
y = -900
| 2x-lx+3l=9 | | -28=-4-3x-3x | | -1(x+3)=-10 | | -1/3×-12 | | -3/5y-1/6y | | tan(3x+4)=cot(5x-10) | | (0.4-2x)^2/x*x=49.5 | | 28=-x+4-5x | | 8x(6x-5)=1 | | x*x*x*x=84 | | x=-x^2+4x-1 | | (D^2+1)y=sinx | | -6(2n-2)+12=4(2n-9) | | 30/(14-4)*3^2-12 | | 24=18x+12 | | 9sin^2x+6cosx-8=0 | | (D^2+D+1)y=sinx | | 25x-9=11 | | X^2+x=14+42 | | 5(x-3)+6=5x-11 | | 3/4((x-16)=2(x-3)=4 | | x=-x^3+4x-1 | | 0=20+6t-t^2 | | 91=5v+11 | | 12x+3x=0 | | 1/4r=4 | | ((1/3)((2/5)x-(1/5)))/(1/15) | | 1/4r | | -20=6t-4.9t^2 | | 5v-12=68 | | 40=3p/5 | | 0.7x=252 |