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6/9 = 2/x
1040 = 400/x
(3*y)/5-(1/10) = 0
2*x^4+x^3+x^2+6*x+2;2*x^2+2
w-((2/5)*w)-3 = 0
| 8x+28=92 | | 6x+1+11x-5=13x+12 | | 6.25=100 | | 0.05+0.7=0.3t-0.35 | | 5+5x=145-15x | | 28+2x=152 | | 2sin^2x-sinx-12=0 | | 21x+6-23x=3-5 | | -2a+8=-12 | | 10x=20-9x | | -61=9x+74 | | 9x-10=5x-12 | | 6/9=2/x | | 8y-7=6t+3 | | 400=1040x | | 5x^7=5230 | | -2[x+7]=9x | | -29-6x=25 | | X+32=0 | | 48-4c=88-9 | | 2x+1+2x=22 | | (6x+40)-x=180 | | 9x-4+3=4(x+5) | | -207=n-45-2n | | Xy^3+xy^6= | | 1040=400/x | | 8.8x=8.8 | | 3y/5-1/10 | | 81=2t-11t | | 17-3=x | | -6z-14+26+2z=-4 | | 2(-1+-2y)+3y=0 |