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90/1560 = 0
3/52 = 0
L <> R
| -15x-19=012 | | 5(21x+98)=7(50x-105) | | 12+3x=(-x+7)-79 | | X^3+X^2-X-6=0 | | 16+20=(x-2)(x-2+x+4) | | 2(3x-4)-6x=-4 | | 6r^2=300 | | 100/1600 | | -3v^2=-228 | | 7/u=17/8 | | 4/7-3/4 | | 3x-1=-23 | | u/5=17/13 | | 6-5p=p^2 | | 5/11=4/v | | 11x+7=12x+3 | | a^2+7-8=0 | | 5(x-8)26=97 | | -26-36=-30 | | c=5+60 | | 40x+60(1.5x)=520 | | 40x+50(1.5x)=520 | | C^2+11c+29=0 | | 40x+40(1.5x)=520 | | 5x=10/7 | | 4/y=11/7 | | x^2/1.8-x | | c=2.5+70 | | 40x+30(1.5x)=520 | | 36=6/5y | | -9(8n+3)=25+6n | | 17/11=10/x |