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)
7*(4*x-(2/5)) = 0
7*(4*x-2/5) = 0
4*x-2/5 = 0 // + 2/5
4*x = 2/5 // : 4
x = 2/5/4
x = 1/10
x = 1/10
| -2.8n+6.7n=-0.1372-0.028n+3.9n | | -10p-6=-36 | | 67-3/4c=85 | | (x-2)(x-10)(x-18)+360=0 | | 4x+5-6(x+1)=5x+4 | | (b)x^2+(b+3)x^2=15x^2 | | 25+12x=35-10x | | 7x+5=3x+3 | | x^2+6mx-5n=0 | | x^2+6mx-5n= | | 12x+7y-5z+8y-4x+11z= | | 0.9x+2.2=-1.252x-7.03208 | | bx^2+x+3x^2=15bx^2 | | 7y-9y=-7-9 | | -12.2=2.1b-3.9-6.2 | | x^3+x^2-8=0 | | 11-9=5x | | -11b+2=-(11b+5) | | r-6.9-1.8r=-10.18 | | 60-4x=10-7x | | m+6=-13 | | 22.4=4.8x+2.2x | | -3-x=-9 | | A=Z+nr | | 5x+0.5y=4 | | -8.08=-19.3+x | | 3x^3y^3-xy=0 | | x/20+25=95 | | 4(22-1)+3(4z-5)=z | | 4x+14=77-4x | | 2(4h-7)+9(2-h)=-6 | | -31.2=x-16.2 |