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4/7 = 28
412;214.55
9.7;2.0047
0.077979;0.011
7.9689;1.01
| 9x+90=50x+13 | | 5x-2(-2+5y)=9 | | x^2+2x^2+20-40=180 | | 4(5x+5)=2(2x+42) | | 21x+1=x+5 | | 2+6g=11-4c | | -7x=-273 | | 4x^2+50x+170=0 | | 9x+63+105-5x=180 | | 4x^2+50+170=0 | | 10x(20+d)=30 | | 12x-7+5x-6=4(4x+6)+8x-17 | | 4x+-x=27 | | 3x+127=6x+178 | | D=p+4 | | 5x+1x=5 | | 21x^3-14x=0 | | 27=-x+4 | | 6x+178=3x+127 | | (18*1.25x)/(2.5) | | -8x+12=x-9 | | 30=x+x*.05 | | B=2x+4 | | 9+6c=57 | | 5/9a=6=4/9a | | T^2+2t-17= | | 3d=7v | | 4+n=12n-9n-18 | | Log(5x+20)=2 | | 8+2x=180 | | 6b-1-10b=50 | | 6(1+10m)=5m+6 |