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-8/x = 2*x
(-1/3)*(-3/5) = 1/3
(-3*(-1/3))/5 = 1/3
3*sin(x)*cos(x)
14*x = 20/8
| -7a(8a+9)=0 | | 66=pi*r^2*3.3 | | 0.52x=11.96 | | X^2-6x-5=y | | 9r^2+16=0 | | Y-5*y=36 | | 6(2x+5)-8x=2 | | 12y=(9y*0)-144 | | 20x^2-40x-225=0 | | .2a-7=5-2.5a | | a-5+2a-8a=15 | | 5(2y+6)=-25 | | (x-2)+ln(x+4)=ln*7 | | -8/x=2x | | X^2+6x=k | | -1/3x(-3/5)=1/3 | | -1/3*(-3/5)=1/3 | | E^1-X=4 | | 2x+2-x^2=0 | | 5-6x=-10x-3 | | -1/3*-3/5=1/3 | | 14x=20/8 | | log(-11x+2)=log(x^2+30) | | 5x-10x^3= | | 8(5x-3)=56 | | x^2+10x+16y-23=0 | | 300-75= | | 5y+2y=x | | 7x=x+4 | | -(6y+1)-(-5y-4)=0 | | 5(x-2)+2x=4 | | 0.04x-0.44=0.02 |