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)
(-4/5)*x = 1 // - 1
(-4/5)*x-1 = 0
-4/5*x-1 = 0 // + 1
-4/5*x = 1 // : -4/5
x = 1/(-4/5)
x = -5/4
x = -5/4
| 10-3x+8x-2= | | 0.34*11/2 | | 6*-3y=4 | | -6x-3x-11=34 | | 30+0.35=c | | 90+x+49=180 | | -58=17-3x | | 41790=210(5-5) | | 10(0.4+0.5g)=49 | | 6.51-9.32+h=1.02 | | 2x-6(-2x+4)=32 | | -x/5=0 | | 2/3-5/6x=1/3 | | 0.25(x-4.3)=4 | | 7+2y+3a-2y+1= | | 41790=210x-5 | | 6a-6+3b=14 | | 5x+35+45=90 | | 387+430=817 | | d/7 | | 2x-6(2x+4)=32 | | 5x+21+8x-36=180 | | 3=8+1x | | 8x-3x+2-x=6x+3 | | 4(3G-5)=-(46+3G) | | 2/3x-5/6=1/3 | | r-5+3+2=-6+r+r | | -15x^2=-6x-9 | | 5x-1-3x=9 | | 9x-2=142-7x | | cos(55)=(16/x) | | 5x-13x=9 |