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(1/2)*x^2+1/x
(x+4)/2-y-4-1;2*(x+1)+3*(y-1)-9
x-(2*(tan(x))^-1)
x^2-(4*x)-5 = 0;x
x
x^3-(3*k)+y^3
| 2x+18-1=23 | | 2(2x+3)=-3(x-1) | | -8y=34 | | 5*ln(x-7)=20 | | z/-12=15 | | 4x+5=3(x+9) | | 4x+5y-9=6 | | 3(x-1)=3x+5-2(-3x-4) | | 5x-3=2(x-1)-2 | | 3(x+1)=3x+5-2(-3x-4) | | (x-3)/x=-3 | | 2.2=6.2+x | | 4(p+17.5)=53.50 | | 300x+180y=17280 | | 40+20+.65x=50+.75x | | 225=9(x+9) | | 3(2x-4)=6x-9 | | 5w-2=-12x | | 1/2x-4/32 | | 5(y+2)=9y+2 | | 144=8(x+8) | | 8v-36=4(v-4) | | 4z=120 | | y-2.3=7.8 | | 3x+10-4x=18 | | 5x/3-1/2=x/6 | | 15+55.45x=57.95x | | 5x-24=-8 | | 15+55.45x=57.95 | | 0.3y=20 | | 45/7x6 | | 1137=158 |