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)
t*((7*x)/18)+(5/12)*y = 0
7/18*t*x+5/12*y = 0 // - 5/12*y
7/18*t*x = -(5/12*y) // : 7/18*t
x = (-(5/12*y))/(7/18*t)
x = -15/14*t^-1*y
x = -15/14*t^-1*y
| y=2x^2-3x+12 | | -4=1.2+6 | | 4y-y-10y=y | | -1/6+(-5/8)=x | | -4y-11=7y+22 | | (x^3-3x^2+3x-1)=0 | | x+x+2+x+4=66 | | 4y-y-10= | | 16y^2-5-y-80y^3=0 | | 4y-y-10=-7y | | 12x^3+10x^2-42x= | | 4y-y-10=y | | 0x=10 | | (x^3+3x^2+3x+1)=0 | | X-8=4x+7 | | -5(x+7)+4=7(x-1) | | 45x+23x+1=135 | | 2x-5=5+16 | | F(x)=x^2-6x+5 | | (x^2+3x+3)=0 | | 0.5x-0.3=1.25 | | 90x^2+79x+7=0 | | -2(3x-8)=18 | | 9=7(1)+2 | | (-2y+7)=11 | | 3x-5y=-17 | | (3x-8)=18 | | (2y-7)=11 | | 1/2x+8=-5 | | 5+10-3-71+25x=0 | | 7t-6=4t | | -4w^2+14w+9=0 |