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)
-12 = (2/3)*z // - (2/3)*z
-((2/3)*z)-12 = 0
(-2/3)*z-12 = 0
-2/3*z-12 = 0 // + 12
-2/3*z = 12 // : -2/3
z = 12/(-2/3)
z = -18
z = -18
| 1/4(2/3)^2-2(2/3)+9 | | -44/10=-22/5 | | t-3=17 | | (4-z)-10=-1 | | -7(x+4)=-7x+28 | | P=a+b+csolveb | | 1/8(6q-5)=3/4q-7/8 | | 1/4t+8=5 | | x^2+6x-20=180 | | 2x+x+(2x+3)+2x+(x-1)=76 | | -(6y+3)-(-5y-7)=1 | | (2w+17)(1w-7)=0 | | 13x-(7x-3)=27 | | 100+12n/23 | | b-5=-7 | | Z-6z=9z-4-z | | 15m^2+6mn-21n^2=0 | | 4x^2-2x+1= | | 1/8(10b-2)=5/4b-1/2 | | 2/5x1/-3x=2 | | -5x-3=3x+13 | | 2(n-4)-(3-6n)=7n | | 7(x+1)+1=2x+5(-1+x) | | 35x^3+120x^2y+45y^2x=0 | | .4t=.72 | | 0.4(x-8)=3.6 | | (y-5)-2=-10 | | 3C-3+4=196 | | -8x-7=49 | | 3(3x-3)=9x+9 | | 12x^2-16x-28=0 | | 8/9a+2=8/9a+2 |