If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2-(7*x) = 0
2-(7*x) = 0
2-(7*x) = 0
2-7*x = 0
2-7*x = 0 // - 2
-7*x = -2 // : -7
x = -2/(-7)
x = 2/7
x in (-oo:2/7) U (2/7:+oo)
-4/(2-(7*x)) = 3-((1*5)/2) // - 3-((1*5)/2)
(1*5)/2-4/(2-(7*x))-3 = 0
5/2-4/(2-7*x)-3 = 0
(-4*2)/(2*(2-7*x))+(5*(2-7*x))/(2*(2-7*x))+(-3*2*(2-7*x))/(2*(2-7*x)) = 0
5*(2-7*x)-3*2*(2-7*x)-4*2 = 0
42*x-35*x-12+2 = 0
7*x-10 = 0
(7*x-10)/(2*(2-7*x)) = 0
(7*x-10)/(2*(2-7*x)) = 0 // * 2*(2-7*x)
7*x-10 = 0
7*x-10 = 0 // + 10
7*x = 10 // : 7
x = 10/7
x = 10/7
| -18-1+29-41=-5-2m-7+3m | | 3x+5=12+2 | | 10x+5y=2 | | 10+3x=36+1 | | 125-65=.80b | | x+2(x-2)+3=3(x-1) | | p-65=40 | | 47+5/12*100 | | 2x-16+2x=46 | | .4x+.2=-3.6-.6x | | 32x^2+536x+1575=0 | | 2x-16=2x+46 | | Y=10+0.75(2) | | g+13=310 | | 2*21/4+6(9/4+2) | | Y=10+0.75(1) | | 47+5/12x | | -1+11=4b-7-3b | | 8y-x=1 | | .20x+53.60=x | | 7x-16-3x=10+42 | | -8+-5y+y=-8 | | 2.4x3.53/4 | | -2p+2+3p=5 | | 7h=36 | | y=5/8-7 | | 4x-3+4x-3+5x+5x= | | (1/2-3/10)= | | 3x+18=-2x+11x-21 | | 4h=12 | | -1-4=1-2x+3x | | 4y+4x=3 |