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)
5*x+1/4 = -15/4 // + -15/4
5*x+1/4-(-15/4) = 0
5*x+1/4+15/4 = 0
5*x+4 = 0 // - 4
5*x = -4 // : 5
x = -4/5
x = -4/5
| -x-5/7=-5/7 | | 1/4+x=13/20 | | -7x+3/10=-837/10 | | 3/7x+6/7=54/49 | | 7x+1=17/3 | | 5x+9/10=-251/110 | | 3/5x+2=17/10 | | 3x-3/7=4/7 | | 3x-7/10=4/5 | | 3/4x+2=5/2 | | -4/5x-1=-39/25 | | 1/2x-6=-40/7 | | 4/5x-9=-77/5 | | 1/5x+2=19/5 | | -1/2x+3/10=-1/5 | | 1/2x-2=-13/7 | | -x-2/7=61/7 | | 2x-4/9=32/9 | | 3/5x-7=-36/5 | | 1/2x+2/3=31/6 | | 2/9+5x=-166/63 | | 1/7-4x=-51/35 | | 2/3x-1/2=0 | | 10+2/7x=51/5 | | -8-6x=-11 | | -1/3+6x=179/3 | | -3/5+5x=-83/55 | | -5/6+6x=31/6 | | 6x+9=39/5 | | -3/10+4x=1/10 | | 2/3x+3/4=41/44 | | 5/6x+5=55/6 |