If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
45/75 = 3/x // - 3/x
45/75-(3/x) = 0
45/75-3*x^-1 = 0
-3*x^-1 = -3/5 // : -3
x^-1 = 1/5
-1 < 0
1/(x^1) = 1/5 // * x^1
1 = 1/5*x^1 // : 1/5
5 = x^1
x = 5
x = 5
| 5/7=x/63 | | -5(t+3)=-30 | | (-9)(z+9)= | | -9=y+3 | | y/5-6=5 | | -3(z+4)+7=8z+39 | | 100=20n | | 4=30x+10 | | 4=30x | | ((6/5)x3-(4/7))((6/5)x3-(4/7))((6/5)x3-(4/7)) | | -4=30x | | 4x+11+2x+18=7x+22 | | ((6/5)x3-(4/7))((6/5)x3-(4/7)) | | -15=3b | | 2b+15=3b-3 | | 9(w-6)=-36 | | a+50=11a | | 4-2(x+3)=-9x-23 | | 1x+17=52 | | 18=-6p-3p | | |1/3d-6|=15 | | 5y-6+y+24=5y+30-3y | | 2(5x-6)=18 | | 14q-36=10q | | 4(3i+1)=7(i+2) | | 5y-6+24=5y+30-3y | | -4.3(1-3.4x)=39.838-0.6x | | 10p+46=17p+11 | | 4-4(K)=0 | | 4x+5+3x+9=8x-3 | | -4(z+4)+10=5z+30 | | B=xyw/z^2 |