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)
(2*x)/5-(x/2) = 40 // - 40
(2*x)/5-(x/2)-40 = 0
-1/10*x-40 = 0 // + 40
-1/10*x = 40 // : -1/10
x = 40/(-1/10)
x = -400
x = -400
| 1.9(4)+86=x | | 10x-100=9x | | 0.10d+0.25(d-8)=4.30 | | 5=3x+5y | | 3x-5=81 | | -17=-1/5x | | 27=x/9+4 | | 3-x/2x-6 | | -1/3x=-15 | | W^2+35w+34=0 | | -2(x-3x+4)= | | 7x+7=48 | | -1/2(-6x-4)=15 | | 3b^2-18b+-10b-49= | | 2/3(x)=12 | | (5p-16)(2p+20)=0 | | X^2-21= | | 4a^2+15-18a+5= | | 3n/4+16=19 | | [x-4]=10 | | 8x^2+5x+3+7x= | | 16y^2-2y-3= | | s^2-24s+44=0 | | 3x-12=2x+3 | | 3x=(6+4x) | | z/6+4=5-z/6 | | k^2-30k=0 | | xq+rq=s | | 2k^2+11k-40= | | 2x-8=-5x+7+7x | | 6x^2-11-10=0 | | 2x^2-6x-140=0 |