If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a/8+7 = 15 // - 15
a/8-15+7 = 0
1/8*a-8 = 0 // + 8
1/8*a = 8 // : 1/8
a = 8/1/8
a = 64
a = 64
| 3(6x-1)=33 | | 6a+1=43 | | x^2-5x=5x | | 4l-23=3l+4 | | (x-3)2=0 | | 4=6b-5+4 | | k=fa | | 10-(7x-2)+1=8 | | (6x+9)(x^2-4x+5)= | | 7*7=2x | | (3+2x)(1-x)= | | 7-2=2x | | x+1=75*5 | | 142-2x=43x+17 | | -77-10x=10x+23 | | (3+2x)=(1-x) | | 4x+101=8x-7 | | 1x+55=22x | | 173-5x=13x+21 | | 14-9x=32-16x | | -135-9x=8x+15 | | 2x+6-5=10x | | 3y+10+5y=20-2 | | 5x+190=14x-8 | | 81-5x=8x+15 | | 181-7x=38x+21 | | (n-4)*6=30 | | 3x-4=6-2x | | 12x^2+12x=0 | | 10-4x=x-5 | | 9x-4=36 | | 2x-8+4x=12+6x |