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)
(-9/2)*x+80 = 0
80-9/2*x = 0 // - 80
-9/2*x = -80 // : -9/2
x = -80/(-9/2)
x = 160/9
x = 160/9
| -6=14-2/3 | | 4p+7=14+3p | | 2v+4v=18 | | 7=3X-6 | | (x+4)(x^2-4x+2)=0 | | (x+4)(x^2-4x-14)=0 | | -3y+4=-4y+5 | | -4/(x+1)(x^2-9) | | 6x-5=2x+1whatsx | | (x+4)(x^2+2)=0 | | -3y+4=4y+5 | | -6y=3+x | | 5p+7=12-3p | | 95+8x=127+4x | | 6a-15b= | | 4p-2=14 | | -192=4(1-7a) | | 24/6y | | 3(e-5)=6 | | -248=8(1-4x) | | 1x^2+8x+4=0 | | 2m+3=19 | | 3n=40+5(n) | | 1/3x+1/5=-1 | | -13x^2+17x+30=0 | | 3t^2-75=0 | | 1/5x+1/2=-5 | | 8-2k=14 | | 2t+5.9=11.5 | | 112=-7(8-3r) | | 3x^2-9y+12=0 | | 9p-8=2p+13 |