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)
19-x = 80/8 // - 80/8
19-x-(80/8) = 0
19-x-10 = 0
9-x = 0 // - 9
-x = -9 // * -1
x = 9
x = 9
| 3x-20=10+54 | | -(x-2)+2x-6=8 | | (10,-5);y=3/2x-7 | | 5+p=6 | | s(2)=-16t^2+15t+24 | | (10,,-5);y=3/2x-7 | | -80/-8 | | .5x+4=7.5 | | 10-4q=76 | | 4x+11=kforx | | 9t-0.06=8.92t-0.7 | | -2(x-5)+3x=8-3 | | 60+60+x+30=180 | | 9x=y^2 | | -4(a+8)=-7(a+5) | | 0.8(4-0.5)=5.6(0.5) | | 5x+9-7x=-3 | | 10a^2+23a-42=0 | | 2x=3x-24 | | 0.8(4-0.5)= | | 9a-8-8a=-5+4 | | 45+90+x+15=180 | | -2x-7=-9x+7 | | 5x+3=33+2 | | 9a+6-8a=5 | | -15+3=-8x-46 | | -2p+7=3-[5p+1] | | 20k+7h+8k+1=180 | | (9x+13)(3x-7)=0 | | 30+4x+25+25=180 | | -8x+23=-7 | | 3m/2/3=6 |