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/100 = 0.4 // - 0.4
x/100-0.4 = 0
1/100*x-0.4 = 0 // + 0.4
1/100*x = 0.4 // : 1/100
x = 0.4/1/100
x = 40
x = 40
| 63-4x=9x+74 | | x-1.6=5.9 | | 2(x+3)/9-4=2x+3/6-x | | P=c+3b+3asolvec | | x+1/3=5/12 | | -3-(7-10)= | | 155-x=6x+11 | | x+0.17=4.6 | | x^3+6x^2-25x=150 | | (-15+(-4))+2= | | x/14=39 | | 5x+10y=500 | | 25+4x-5-x= | | g/-5 | | 9(4x+2)-32(2x-6)=56(5x+1) | | 1/3n=42 | | g/-5=-18 | | 3a/4=12 | | (-4+(-5))+(2+(-1))= | | (5x+7)+(2x+54)= | | 154-6x=30x-18 | | -x+3/5-1=3-5x/2 | | 23+9x=4x+158 | | 30n=0 | | 14+(6+(-7))= | | (5x+7)(2x+54)= | | 82+94+88+1x=85 | | 2(2y-1)=3(1-2y) | | 3.5x=-5x^2 | | -24.4+(-77.7)= | | -3.5x=-5x^2 | | 8y^2=-48y |