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x in (-oo:+oo)
12*(1/3)*x = 0
4*x = 0 // : 4
x = 0
x = 0
| 86=2-7(2+2x) | | 2(x^2+10x+25)+8=-8 | | (x/4)-9=65 | | a^2-b^2-2a-2b=0 | | 2(w+y)=x | | 5x+3(-x+2)=22 | | 6x/(x^3-8) | | 7x+5x=6x+24 | | X/4-4=3/4x-6 | | Ax+by=15 | | 4x+x=160 | | 10c-8c=4 | | 8c+3=31 | | 17=(1000-2Q)/46 | | 4x^2+11-12=0 | | 60=1.5/300 | | (-20/9)x1 | | 5m-2=-m+2 | | (3/8)j=6 | | 2/3(x-9)=14 | | 60=k/5 | | 1/3(3.14)(4^2)(9) | | C(100)=0.5(100)+1000 | | 50=250/150 | | 7=10x-21 | | C(x)=.05x+1000 | | mx+2nx=x | | 18x+40y=14 | | 6-3(x+4)=2 | | 3.52*.052= | | 50=k/5 | | 50=400/7.5 |