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 > (2/5)*x // - (2/5)*x
2-((2/5)*x) > 0
(-2/5)*x+2 > 0
2-2/5*x > 0 // - 2
-2/5*x > -2 // : -2/5
x < -2/(-2/5)
x < 5
x in (-oo:5)
(-oo:5)
| 2.75=2400+1175x | | (x-2)2+(y-0)2=64 | | 2(x-18)=-3(x+10) | | 2.75=4200+1175x | | X-81=261 | | -x-4x-7y=12 | | 3y^2+25y-28=0 | | -0.25x^3+3x+5=0 | | 4(x-5)=-8+x+19 | | 2L-15=8 | | -x-4x-0y=12 | | 4-8(-2-6t)ift=1 | | 5-6h=-5 | | 15+3b=-6 | | 7-s=-4 | | 45=-3x+3 | | -9(8-2x)=-10 | | 4t-7=-4 | | 6p-18/2=7 | | n-30/3=6 | | 3x=-2y+6 | | n-30/3 | | 6p-18/2 | | 6a+a^2-a=0 | | x^2-6x+19=16 | | .25+x=2000 | | 40=2(10-5x) | | 9(c-3)=6 | | (4a+3)(3a-1)= | | 3x+4(12)=117 | | 178=5x+3 | | 3(x+5)+12=4(x+4) |