If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
(7/8)*m-6 = 15 // - 15
(7/8)*m-15-6 = 0
7/8*m-21 = 0 // + 21
7/8*m = 21 // : 7/8
m = 21/7/8
m = 24
m = 24
| 18.95+.71x=214.91 | | 17.05b+2.35b= | | -6(2+7n)+2=3n+5(1-6n) | | 17.05b+2.35b=b | | 5(w-4)+w+8= | | 4b+2=6+4 | | 4x^4+6x^3-36x^2-54x=0 | | a+a(2)=405 | | -4n-(-2-2n)=0 | | 9h+11-h=4+3h+22 | | -13=3-5g | | 21+2y-4=4+10y-24 | | 2x/5+3/5=9/10 | | 5/9e-1-1/3e=3 | | 6-22x/3=2x/3+2(-3x-1/2) | | (6x+6x)+3x=0 | | 22x-8=5(4x+4) | | 6x+6=21 | | 3x+5=-167-9x | | 49=7h | | 15+2.05b+2.35b= | | 9/4-1/7= | | -9=26h-7+6h | | 5x+9+3x=3+7x-4 | | -2(6x+5)-2x+19=16(19x-3)+5x+5 | | 46/5-17k/5=-7k/5+3(k+2/5) | | Xsquared+8x=57 | | -6=6+v | | 5r+11-3r=8+4r-15 | | -9x-34=5(x-4) | | -18.9w=-1.7-17.2w | | -43-2x=5x-10 |