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| Q^2+13q+42=0 | | 9+w=15 | | 0.35x+500.00=2.50x | | 6c+24=4c-8 | | 2.50x=0.35x+500 | | 22x^2+9x-1= | | -4+5=c-2 | | 62+6x=72+4x | | X/4+x/3=14 | | 1/3(2f+63)-f=1 | | x-20=.2*x | | -4/9*(-9/13) | | 7x+13x=140 | | -143=11f | | 88+9x=118+6x | | (4x-y)(3x+y)= | | x-6/5=7/4 | | 60+5x=68+4x | | 16b^2-1=0 | | 7y+4y=121 | | -x^2-12x+13= | | 73+7x=85+4x | | 3/5k+7/10=11/15-2/5 | | 8x+2x=x+6 | | 0.5x+7.5=0.75x | | 35n+720=1000 | | j=7k+5 | | 3x+2x-4^2=7x+6/2 | | 7x-2=-65 | | 2v-4v+72+7v=180+[-43] | | 0=x^2+3x-4 | | 6k^2+6=0 |