If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
(2/3)*n+n+2/7 = -274/21 // + -274/21
(2/3)*n+n+2/7-(-274/21) = 0
(2/3)*n+n+2/7+274/21 = 0
5/3*n+40/3 = 0 // - 40/3
5/3*n = -40/3 // : 5/3
n = -40/3/5/3
n = -8
n = -8
| -1/2a+10+5/6a=31/3 | | 3k+3/8+5k=155/72 | | 8-7t-5t=-4 | | 1/2+2x-2/3x=19/6 | | a-10+6a=-163/10 | | 3/4t-1+4t=37/20 | | 5/6w+1/2+7w=-91/6 | | -53/10=7t+7t+3/10 | | 1/2k+8-k=61/8 | | -151/16=-6w-1/2w-7 | | -2/9+2/5x-4/7x=-814/2205 | | 6/7-2/7x-7x=9/70 | | 21/10=4/5t+1/2t+4/5 | | (n-7)*7=49 | | 1-3x+2/7x=-31/7 | | -1/2+k+1/3k=37/6 | | 7t-5/7+7t=230/21 | | 4-2/3w+w=23/3 | | 1/2m+3/10+4/5m=-1 | | 9/14=a-2/5a+1/7 | | d-1/6+5/7d=-265/294 | | 629/10=6a-4/5a+1/2 | | 6x-9=2r+35 | | -75/28=-d+3/4d-3/7 | | -1+6x+6/7x=-439/7 | | -21/5=4d+3/5d+2/5 | | 3/4-2/7a-1/3a=-509/84 | | -23/7=4/5t+4t+5/7 | | x^3+4x^2+2x+4=0 | | 3/4+3w+2/3w=37/9 | | x*29=500 | | 6m-3-6/7m=33 |