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)
8*x+(4/7)*y = 0
8*x+4/7*y = 0 // - 4/7*y
8*x = -(4/7*y) // : 8
x = (-(4/7*y))/8
x = -1/14*y
x = -1/14*y
| 3x=40.20 | | 8y-7x=4 | | 9.25+3.3=1.3-0.75 | | 40.20-2x+2(8.22)=x | | -5a-2x/3a+5a+8a/3a-2/1 | | 16(1.625+0.375y)-6y=26 | | 16x-6y=26 | | 4t+9-3t=-9 | | 3x=24516+x | | 3x=24516 | | 5/v+2=-4/1 | | 2x=24516 | | 7/8x3 | | 3x=24516-x | | 2x-6+7x=33 | | 3x-1x=24516 | | y/2x=4 | | 2(x)=24516-x | | 3x-5=25+6 | | (7y-5)/3=(9y)/4 | | 7y-5/3=9y/4 | | 12x-12= | | x^3+3x=480 | | 2(x-8.22)=40.20 | | 9m-11=99 | | 40.20-2(8.22)=x | | x-3-5=44 | | x+3+5=44 | | x^2+18x=1092 | | 6/5=14/4x+3 | | x-2(8.22)=40.20 | | 2x-3-5=44 |