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B;a;a;1;0;0
A;a/2;a;1;0;0
84/2
1/A;1;A;1;0;0
1/A;2;2;1;0;0
| 26t+21=34 | | 7m+1=-7+9m | | 7m+1=-7+9 | | (X-y^2x)dx+(y-x^2y)dy=0 | | 2d^2+5d+12=0 | | N+2n+n-5=15 | | 3h+7h-10=9h-3 | | y=90-40 | | (4x+7)=35 | | 6.2-x=4.2 | | 1/1౦y=1/7 | | -(n-7)-n=8(6+n)+6 | | (ln)x^2=7 | | -8-3p=8-7p | | 1/10y=1/7 | | Y=8x-x+26 | | 7+2d=19 | | 1+2x=71 | | (73-z)4=80 | | -12t=11 | | -13=2+3w | | 4x^2-60x-144=0 | | ×/3=15 | | -10-d=d+10 | | 4p-14=6 | | 12x+13+y=180 | | K=24-3k | | 2sin^2(60)=x | | 16=1+3n | | 5x=50-25 | | sin^2(60)=x | | -(-7)-n=-8(6+n)+6n |