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42/n = 8/12
n/12 = 45/108
5/n = 2/38
54/63 = n/49
X/20-2 = 43
| 2=x+2-1 | | y+1.8=4y-3.2 | | 0.75(n-13)=-2(9+n) | | 5x-7-3x=6 | | 5y+1.8y-3.2= | | 1=x+2-1 | | -3x-12+5x+13=2 | | (2x-0.2)+x=5.8 | | 42/n=8/12 | | 21+n=-4(7-n) | | -1(-5)5(2)= | | 5(x-6)(x+2)=0 | | -1=x+2-1 | | f(x)=2in(x-1) | | 7-9b=8 | | -3.5-6x=18.1 | | -.56(x+8)=-2.8 | | n/12=45/108 | | 30x-40y=50 | | 5/n=2/38 | | r^2-2r= | | 3(3x-2)=7x-2 | | 54/63=n/49 | | 15n^2-82n+99=0 | | F(x)=5-1.5x | | 5t^2-1.2t-6=0 | | 6(u+8)=6-7(2u-6)+9u | | 8x+56=-8 | | 2(x+3)-5=-3 | | 7(-7)-2(1)+3= | | X/20-2=43 | | s-19=-37 |