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)
(3/7)*y+1/3 = (-4/7)*y-(2/7) // - (-4/7)*y-(2/7)
(3/7)*y-((-4/7)*y)+1/3+2/7 = 0
(3/7)*y+(4/7)*y+1/3+2/7 = 0
y+13/21 = 0 // - 13/21
y = -13/21
y = -13/21
| x+2x=338 | | 7+3x=-20 | | 8+4.50x=57.50 | | 7x+3x-8=2(5x+1) | | -7+p=6 | | 0.06(a+2.00)+0.1a=172 | | -6x-2-x=-2 | | 102x-17= | | 7*4/9 | | 17s/15=-4 | | 1/4b-4 | | 5x^2+2x-13=23-22x | | 6-2x+4=6x+18 | | (-5-2c)(-6c)+7= | | f(8+6)=9(8)+1 | | 3+4+x=19 | | x+3.5=22 | | 32x+12y=12 | | 8=6x-9 | | x+x+x+(x+1)=48 | | 6x-7=4x-21 | | 2G+4+G=28 | | f(x+6)=9(x+6)+1 | | 58k+35=651 | | 4+2y=92y | | x+x+x+(x+2)=48 | | r^2=-7+18 | | 7x^2+7x-17=55-48x | | 11n-7=6n+3 | | x+x+x(x+2)=48 | | 21-3g=4g | | 3x^4-7x^3-6x^2=0 |