If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
28 = z/3 // - z/3
28-(z/3) = 0
28-1/3*z = 0 // - 28
-1/3*z = -28 // : -1/3
z = -28/(-1/3)
z = 84
z = 84
| -5y+10=0 | | -2/4+34/5+4 | | 7=10-g/-2 | | -28-12=76 | | 15=8x-41 | | c/7=9 | | 3x/4-1=8 | | -24-4x=0 | | 82=b/5 | | 23z=13+25-(13z-26) | | -29z+29z=16z+27z-22 | | a/15=22 | | -8y-4z+x-y-2z+1= | | X/2-5=-8 | | -7x-2=-10x-14 | | 3/10m=15 | | 8/9/(-1/8) | | 3/4p+4=13 | | 42=w+18 | | -32+14y-37y+23y=-31y-12+29y+34y | | -7/8*y=-1/3 | | 3(x-7)-6(3-2x)=19-4(2x+3) | | 3t/4-3=6 | | 255=x/4 | | x/5+x/10=6 | | 13x-21=12x-24 | | 10+2x=-7x+19 | | 6p^2+6=-97 | | -5/3*(-2/7) | | k/24=85 | | 200/X=3 | | 13-18=-5x |