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31/7 = 93/t
2*x+5 = 7
14/9 = 42/t
((1/4)*x^20)/4 = 0
12/16 = 42/x
| 31/7=93/t | | -8•(7/2) | | -8•(-7/2) | | 9x-25=94 | | 14/9=42/t | | g(v)=3v+4 | | 28X=7X-14 | | 36=16t^2+48t | | 1/4x20/4 | | 12/16=42/x | | 28v^5x^2y^3-16v^9x^7= | | 3x+7+4(x)-2= | | IN(2x)=6 | | 8y=52 | | 63=r-45 | | 6/5-6v | | L-4/8=3 | | 8=5y+3 | | 6x^3-24x^2+40x-24=0 | | 3(5-3x)+6(5x-1)=0 | | x-25+x=425 | | 3=2r-21 | | 7y=11x+42 | | 25x+55y= | | X^3-150X^2+7400X-120000=0 | | 2=9r-25 | | 2x^2-9x=x^2-90 | | 25-9v^2=0 | | 5(3x+5y)= | | X^3-150X^2+7400X^2-120000=0 | | (2x^2+13x+21)=0 | | N=-100P^2+300000 |