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21;2;55;23;12;11
(4*x^4)/4
4*(x+1)-(0.5*(x-3)*(6-(2*x))) = x^2+6
(4*x^3)/4
(4*x^3)/2
| -.5(x-12)=4 | | y(y+4)-10(y+4)= | | Y=5x^2+30x+16 | | X^2+16x=30 | | 11=z-5 | | 18m^8+20m^6-14m^3= | | 2(x-15)=-26 | | 3m-7n=b | | .5(x+10)=15 | | x*5-10=275 | | 29=8+3y | | 7(-5v-8)-4(v+1)=18 | | 4(s+8)=48 | | 10z-4=(5z-2) | | 99m=299 | | 7x+63=4x-32 | | x^2+y^2+16x-20y+100=0 | | G(x)=-5(-x-3) | | (9x-12)+3x=180 | | m/-108 | | 2.7d=13.5 | | y=40+50x | | 22=-2u | | 7w+5=138 | | (3x+6)+(2x*9)=148 | | .5(x+12)=5 | | 242-x=295 | | y/4-9=25 | | 5s-27=103 | | -6+5v=-16 | | x^2+8x+y+y^2+24=0 | | 3x+-y=14 |