If it's not what You are looking for type in the equation solver your own equation and let us solve it.
u in (-oo:+oo)
9 = u/3-12 // - u/3-12
9-(u/3)+12 = 0
21-1/3*u = 0 // - 21
-1/3*u = -21 // : -1/3
u = -21/(-1/3)
u = 63
u = 63
| 44=2w+10 | | v/4-11=7 | | -3n+4=16 | | 9x+2x-6x=23+7 | | z=-4+2i | | 1/2p-3q=7 | | x=1-2i | | 0.75x=27 | | 0.5-r-s/4=3 | | 3y-8=2y-5 | | 2p+7q=-19 | | 10+4*3= | | 10x-18=x | | 10x-18=y | | 3x-4=.22 | | 10x+0.15(50-x)=0.12(50) | | 36x^1y^1-72a^1c^1= | | 1x+1/4=7 | | (1-4z)/3=6-z | | 1/cos*0.19= | | 5x-12=4x-8 | | 28x=172 | | 28x=43 | | 28X=86 | | 56X=86 | | 2/5.8/3.X=44 | | z+2.4=5.3 | | a-12.5=13.9 | | t-5.3=2.3 | | 2+4-3-x=20 | | x+21=-25 | | 6x+-20=45 |