If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
(21/3)*y+2*y+7/2+4 = 58 // - 58
(21/3)*y+2*y+7/2-58+4 = 0
9*y-101/2 = 0 // + 101/2
9*y = 101/2 // : 9
y = 101/2/9
y = 101/18
y = 101/18
| (21/(x+2))=(3/(x-1)) | | (21-z)/21=0 | | 5x+13=122-6x | | (21-6x)/5=x+2 | | 3(x+2)+11=2(x+3)+10 | | (21-2x)/3=(4x+6)/5 | | (20x/(4x-1))+(2/x)=5 | | (20x)/5=4x | | 6x+1=14x-89 | | (20x)/(4x-1)+2/x=5 | | (20x)/(4x-1)+(2/x)=5 | | (20000-x)/x=2/100 | | (20/4)=x | | (20/2x)+6=8 | | -2(w-2)+7=3(w+6) | | (20-x)/(x)=x | | (20-75x)/25=-25x/75 | | (20-2x)/5=2x+3 | | (2/y-3)=-(7/4y-12)+2 | | (2/y)=-8 | | 14x-3=12x+7 | | (2/x-6)+3=11 | | (2/x-1)-(4/x)=(3/x) | | (2/x+7)+(3/x-1)=-(7/3) | | (2/x+2)-(3/x+1)=0 | | (2/x+2)+(3/x-1)=-8/5 | | (2/x+2)+(3/x-1)=(-8/5) | | (2/x+1)=(3/x-1) | | (2/x+1)+(3/x)=(4/x+2) | | (2/x)-5=(6/x)+4 | | (2/x)-(X/8)=0 | | (2/x)+3y=10 |