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)
-x/2 = 4 // - 4
-x/2-4 = 0
-1/2*x-4 = 0 // + 4
-1/2*x = 4 // : -1/2
x = 4/(-1/2)
x = -8
x = -8
| y+34=-7 | | 265-2x=43x+15 | | 3x+2=4x+12 | | -3(s+5)=7s+25 | | (6x+5)(6x+5)=2 | | (4x-8)+2=14 | | 16c^2-10c+1=0 | | 78-6x=9x-18 | | 5(90-7x)=x-127 | | 4x-12+8-8x=7x | | 12x+14=5x+210 | | xand-3=29 | | (cd)ax[10(cd)7ax-15(cd)3ax+20(cd)]= | | 8(x+4)+13=21 | | 9-8x=74-43 | | 2yz+7z-y=0 | | 2yz+7z=y | | 5x+10y=21 | | q^2+10q+16=0 | | -12x+8y=-32 | | 4x+10=-125-10x | | e-13/6=0 | | 6e-13=0 | | -35-4x=8-9x | | 8x/5+1/5+3=5x/3-3/5 | | 6e-13=e-13/6 | | (x+4)-2(4-5x)=6(x+4)-3 | | 0.1x-19.3=0.03x+10.8 | | 1-3(5b-2)=4-(7b+3) | | -1/6z=-2.5 | | 1-9x=-224 | | 0.8t^2-70=0 |