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| 2x^2+13x-12=0 | | 3x×3/2y=30 | | y=5/4x-13/3.1416 | | 5(2+f)=-15 | | Cd+4cd+2= | | 6+2x+10=36 | | Y=-15x-5 | | 4/5•2/7 | | 5e^x/6e | | 19+24+t=180 | | 7*-0.235+12= | | 4/5x25/18 | | 128+120+4x=360 | | 7x+(8x+120)=180 | | -12x^2-48x+144=0 | | v+14+25=162 | | 3a+a-2= | | -10*-0.235+8= | | Tan34=x/40 | | B^2-9=8b | | (9z-u)(5z+6u)= | | -4m-4=-8 | | 7y-2+9x= | | 11+d=22 | | 54y-12= | | 4z+18=46 | | (9+10i)-(19+6i)= | | 3a+3a-4= | | 140=7x | | 3/8(45-5) | | 9m^2=-5 | | 20+4=8x |