If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
(2/3)*a-1 = 11 // - 11
(2/3)*a-11-1 = 0
2/3*a-12 = 0 // + 12
2/3*a = 12 // : 2/3
a = 12/2/3
a = 18
a = 18
| 5+4f=21 | | 4/5x=28/45 | | 7=7(1)+b | | -4(2t+5)=-36 | | 2a^3b-6a^2b^2= | | 3u+7= | | 7x-19=2x+10 | | 15-5x/x-3 | | 3(x-2)=15-4x | | 4x-2=86-7x | | 10=r/5 | | n-8*3=3*n | | 5p+10(17-p)=2p-5 | | 2(x+7)-(x-1)=2x+25 | | 3y+3x=9 | | 4x=88-7x | | 20/(2x)=1 | | 9(2x-8)-3=9(x-5)+(6) | | 8x^2+18x=4 | | -2-2(3X-8)=-(1-9X)-(X-3) | | 20/2x=1 | | a/6-2=4 | | x^2-4xy+6x-24y=0 | | 28a+2a=5a+7 | | 4-(2z/5)=8 | | 5-3a/7(3a-5) | | 5(x+4)=12(x-2)+23 | | 3(c-2s)=5s+m | | -7-3z=4y-2 | | 6(n-3)=36 | | 3.2-y=6 | | 0=ln(x+4)-2 |