If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(2/5)*(x-3) = -12 // + 12
(2/5)*(x-3)+12 = 0
2/5*(x-3)+12 = 0
2/5*(x-3)+12 = 0
2/5*x+54/5 = 0
2/5*x+54/5 = 0
2/5*x+54/5 = 0 // - 54/5
2/5*x = -54/5 // : 2/5
x = -54/5/2/5
x = -27
x = -27
| (1/3)x=(1/3)x-2 | | (-10/2)-(4/4)= | | 6-3(4a-2)=6 | | 2a+b=145 | | -7r-8=3+5r | | 3+2(4p-2)=24 | | s^2+6s+10=0 | | 1/2a-1/2=-2 | | 180=x+2x+3x | | (-x/5)=10 | | 2.4x-12.32=8.8 | | -2b+5=10+8b | | 2a+b+35=180 | | 3(2)+-31= | | 25p=200 | | (3/4)x=(4/3)(-4/3) | | b+2a=145 | | (-8/7)-(8)= | | 4n=.55 | | -(x+8)+9=8x+1-9x | | 3(x-2)=9x-5-6x | | X-4/3y=22/15 | | -(x+7)+9=5x+2-6x | | 9+5(-6)= | | 250x^4+2x=y | | 2x=4y-6 | | 7x+22=71 | | 3(d-3)+2d(d-3)=18 | | 20/3 | | 2(4x-0.7)=mx+b | | -8x-11(x+8)=-9(2x+6) | | 9(3z-1)=20z+12 |