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)
(0.2*a)/4-10 = 2 // - 2
(0.2*a)/4-10-2 = 0
0.05*a-12 = 0 // + 12
0.05*a = 12 // : 0.05
a = 12/0.05
a = 240
a = 240
| -3(x-4)-15=-12 | | 2x-3=-7x+105 | | 50+3x^2=2 | | 30/20x=11/20 | | Y-6/y-2 | | f(t)=-16t^2+96t+3 | | a/6+2=4 | | 10x+20y+8=0 | | 26x-26=15 | | -7(7b+4)=119 | | 10x-4=5x+20 | | -3z-2/2=5 | | 6x(x-1)=4x+4 | | 2a/3.1-4=6 | | 3x+14=-16x-2x | | -3(2-8n)=186 | | 4x+3(5-13)=132 | | 2x+3y-8z=89 | | 6x+2(x+7)=-10 | | 3s+8=-10 | | -5(2-5k)-6=134 | | 408.33=95-2x | | 3t+4=500+t | | 4(x-5)=12+x+x | | -4(x-6)-7=39 | | 16=4w+2w?2 | | -6(1+7n)=-132 | | 9/11=a | | 2x+7y=1000 | | 5(x-6)+9=43 | | -2f/3=2 | | 5(6-8x)=-130 |