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)
(1/2)*(a-2) = 8 // - 8
(1/2)*(a-2)-8 = 0
1/2*(a-2)-8 = 0
1/2*(a-2)-8 = 0
1/2*a-9 = 0
1/2*a-9 = 0
1/2*a-9 = 0 // + 9
1/2*a = 9 // : 1/2
a = 9/1/2
a = 18
a = 18
| -2=2x/3-x | | 2/5x=8/35 | | -175=.25m+150 | | 64-15x=19 | | 6t+-1=9t+-36 | | 500-30y=130+20y | | 16y+3=18y-3 | | 2(4+y)=3(y-1) | | 12x^2-10x=0 | | 6(y+0.75)+1.4y= | | 3x^3-5x^2-14x-4=0 | | 14z+5y= | | 4e-2X=17 | | 10/x^2-2x | | 90m+4m-m=232.5 | | x^3+5x+1=x | | 4x-1=5x+2 | | 14z+4y= | | (18-7y)-(19+3y)= | | x^3+5x+1= | | 5x-5=-9+x | | -4x4/5x=-6 | | 3(10)=10+5 | | 2x-y=2xy | | 10+6+4=x | | 5x-5=-9 | | 4x-8+7x-9= | | 5x+20=12x-4 | | 7x+7=19-10x | | 2(2x-1)=(x+2) | | 918/J=18 | | 4(sin^2x-1)=3sinx-4 |