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z/15 = 5
6/9 = u/12
Y-(1/5) = 0
(-2*(-3/4))/1 = 0
12/10 = 42/y
| 8b-4b+4b-6b-b=17 | | (2x-y)dx+(5y-3x)dy=0 | | -30+11=-8u+51 | | 3-12n=4 | | z/15=5 | | 500=7.5k+25 | | 9r-4r=20 | | (2yx^2)dx+(x^3+y)dy=0 | | 6x^2-30x+24=6 | | 8-2(5-x)=3x-(7-2x) | | 6/9=u/12 | | Y-1/5 | | -3/4*-2/1 | | 20=2x-y | | 45z=15x | | 7=1-3x | | 3*(x-10)=2x | | 5-4x=4s | | 7s+12=131 | | 12/10=42/y | | 13a-12a=18 | | 15x=x+y | | 6(x+18)=9c | | 5u-7=-32 | | -84-67= | | (xy)dx+(x^2-y^2)dy=0 | | 7x-139=-3x+14+x | | 2x^2+4x+1=3 | | 6000=75x+125x+225x | | (2.1b-1.2)=4(0.7b+0.85) | | -3x+15=-8x | | 10-3y=11 |