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5^x
x*(4-x^2)^(1/2)
21;6
45;18
(4-x^2)^(1/2)
| 35y+45=59 | | (x-4)(x-4)+(y-8)(y-8)=16 | | 3y-(2y+4)=6 | | -11(2x+10)=88 | | 7x-9=-13+2x | | lx-3I=2 | | -5y-3x-5x+2y= | | 2sin(x)+5cos(x)=3 | | 8x-(3x-9)=6x-33 | | 2(u+6)=5u+30 | | -4v-17=9(v+1) | | 4/9=7/x | | 4/(160)^3/2 | | -4(w+8)=-2w-36 | | 6x-3=12-2x | | 4/160^3/2 | | 5y/3-2y=19/5 | | 12(-5)+4=9(-5)-11 | | x+54=5x-18 | | 2x^2=-3x+1 | | 7*u=-(14/5) | | 0=130+6.5x | | -14/5=7*u | | 4-6(-.67)=8 | | abs(9x-11)=4 | | 8t+(-5)+(-t)+1= | | x/4=9/7 | | (-2/5)v-(8/3)=(-5/2 | | 6/x=5/9 | | 7y-9.4=11.6 | | -u+-5+15u+30= | | -2(-4+x)=10 |