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a^-9*((-63*a^2*b^-8*c^3)/(-9))*b^-7*c^-4 = 0
7*a^-7*b^-15*c^-1 = 0
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x in (-oo:+oo)
| 2/3•=2/3 | | 5y^2+4=104 | | 6c-23+11=180 | | x(a-4b)=6m(x-c) | | 7a=55 | | 3/5•=1/15 | | 9.1m+1.2=4.9m | | 7.3q=-5q-6.13 | | 2x+11+25x-14=180 | | 7.3=-5q-6.13 | | 7/3x=200/3-x | | 7=r+20 | | -3.6x=4.2 | | 3(v-9)=36 | | 6(7k-10)=25 | | T(x)=4x(5)-7x(3)-13 | | -(r+4)=-12 | | 7(y+3)=-4(3y-9)+y | | 4b+4= | | [5x-5]=-13 | | 6(-3k)=24 | | -1(r+4)=-28 | | 3v^2-19v+35=7 | | (1)-15=2x | | n-7n+6=0 | | 2/9*g=-8 | | (20-5x/4)=-x | | 30(600-x)=7800 | | 5y-9=2y-9 | | 2y-17=90 | | 600-30x=7800 | | 6x-12=19x+3 |