If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t in (-oo:+oo)
2*t+t+6 = 15/4 // - 15/4
2*t+t-(15/4)+6 = 0
2*t+t-15/4+6 = 0
3*t+9/4 = 0 // - 9/4
3*t = -9/4 // : 3
t = -9/4/3
t = -3/4
t = -3/4
| -469/55=5k+2/5k-10 | | 3+4n+n=33 | | -6d+1-6d=-83 | | 3000-120t=4000-160t | | -170/7=6t-2/7t+10 | | 37/180=-w+4/5w+1/4 | | 303/44=-2/3k+1/4k+7 | | 10-2/3x-5x=13/3 | | 5/6m-9+5m=-332/33 | | 9+2d+4d=57 | | 7+5b+3b=-89 | | a-2/9+3/5a=14/45 | | 3b-7+b=9 | | k+3+1/3k=127/33 | | 43=-d+7d+1 | | 2.5y=y+0.5+0.3 | | 6(u+8)=4u+38 | | 442/105=-2/3w-4/5w+4 | | -1/5+6a+3/4a=403/10 | | b+2+2/7b=235/77 | | 8+4/7k-5k=367/42 | | 405/7=-6t+5/7t+5 | | 3k+4/5-k=-13/15 | | -9-2/7d+5/6d=-31/6 | | 15/4=-4m+7m+3/4 | | -32/63=-5/7a+a-2/9 | | 246/7=4/7t-3t+6 | | -2/3w-1+1/3w=-1/3 | | -3/5w+10+7w=486/55 | | 3d+1/2+5d=113/2 | | 2.15y=y+0.5+0.3 | | -2/3-5w-6w=-2/3 |