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)
7*t+5 = -79 // + 79
7*t+5+79 = 0
7*t+84 = 0 // - 84
7*t = -84 // : 7
t = -84/7
t = -12
t = -12
| 2x+1=-30-8x | | 2/7t+4=83/21 | | 5d+2/3=32/3 | | 5w+4=-16 | | 6d+2=50/7 | | -3/5b+7/10=13/25 | | -7/8-2/3x=-179/168 | | 5/6m+1/3=79/72 | | 1+4d=17 | | -1-2/3m=-9 | | -5/8+6/7b=13/56 | | -3/10+5k=69/20 | | 1/7+k=8/7 | | 5t+5=10/3 | | 5/7t+3/4=61/28 | | 2b-6=10 | | 3/5x+3/5=12/35 | | 7w-8=-25/4 | | -1/2b+7/9=77/18 | | -2/3-6k=55/12 | | 6t-1=37/11 | | -1/3t+3/8=-23/24 | | 3w+8/9=8/9 | | 5k+3/5=121/35 | | 2/7t+4=179/42 | | -2/3+3/5k=-37/15 | | -8+3/7a=-163/21 | | 3+2d=1 | | 3+3/4a=117/32 | | 5/6w-3/7=-71/84 | | 2w+5=20/3 | | 1/10+7d=1/10 |