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50/x = 15/100
-2*(2/5) = 3/4
7/8 = d/56
180*(y/100) = 27
6/7 = 8/n
| f=17c+28 | | 50/x=15/100 | | hx+2-h-2x=0 | | 2/5*-2=3/4 | | f=17c+27 | | S=-16t^2+24t+1 | | 7/8=d/56 | | (5x-6)(5x-6)=5x | | 2p+2=-3p+2.5 | | 4c-2c=8 | | .004x^2+.08x-500=0 | | -6X-4(2X+39)=-58 | | -z^2+4z=4 | | 4x-9=6c-13 | | y/100*180=27 | | 21k^2+10k+1=0 | | 5k+2=9k+6 | | xsquared=3x-1 | | 6/7=8/n | | (5x-6)(5x-6)=-5x | | =121k^2+10k | | 8x+540=5x+132 | | (5x+6)(5x-6)=-5x | | 9n^2+9n+18=0 | | 17-29=4k | | 6k+5(k+1)-10k=-8-2(k+12) | | 2b=864+.8b | | (X-4)+(2x-7)= | | 3/z=7/21 | | 2r+.45=3r | | 12h^2+13h+3=0 | | X^2-11x-55=0 |