If it's not what You are looking for type in the equation solver your own equation and let us solve it.
N in (-oo:+oo)
N/(-9) = 7 // - 7
N/(-9)-7 = 0
-1/9*N-7 = 0 // + 7
-1/9*N = 7 // : -1/9
N = 7/(-1/9)
N = -63
N = -63
| 15x-4=x+8 | | 4/-8=16 | | (x+9)/(2x+14)*(8x+56)/(9x+81) | | -8=2+5x | | (8x+56)/(9x+81) | | 5x-4(x-5)=-2 | | 3(2p+7)=8(-2t+11) | | 38=2x+10 | | 45-10+7x-3x=8x+2x-9+20 | | 16x^4-17x^2+1=0 | | 5x+6=8x-2 | | x/4+1=x/3+5 | | (4u-6)(7-u)=0 | | 8x+56/9x+81 | | x^2+y^2-6x+18y+100=0 | | x^2+y^2-6x+18y+91=0 | | 2x+8=5x-10 | | x^2+y^2-6x+18y+89=0 | | x^2+y^2-6x+18y+90=0 | | n/5=19 | | B/3+7 | | -2=r-19 | | 3(3t-4)-(t^2+5)-4t(t-3)=0 | | 8/7=k/8 | | M(m-10)=0 | | 6b+9=-4b+28 | | (-8)/(x+6)=-5 | | 5/(n-12)=-1/n | | 4z^2-16z+12=0 | | x^2(x^2+3x+2)= | | 3y+2.5x-3.7=0 | | x=-22+-6w |