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(8)^(-2)
3907;678743
7*x
x
2*x
| 2x^2-8=67 | | 11x-14= | | 9x^2+12-6=x^2-7 | | 3(2c+4)=30 | | -7(2x-8)+4x-18=-12+8(-3x+10)+15-x | | -4+k=14 | | 4x-9=24+9x | | 3x+(x-300)=2100 | | 8x-21=-19+9x | | 8x-3(4x+10)+14=3x+5(-2x-4)-17 | | x+(x+3)=(x+5)-(x+2) | | 10x4/5= | | 3(2-x)(x-4)=0 | | x+(a-3)=(x+5)-(x+2) | | 5-3(x+11)=2(x+11)-5 | | 5x-(2x+1)=13+2(x-5) | | 18*4.5= | | -3+2y=3 | | 8(x+1)=4(6x-2) | | -3+2y=-6 | | y=16x^2+4x+12 | | 12+8x-2=26 | | 17-x=3(x+13) | | M^2=-7m-6 | | 4x=8-7x | | 10-2(x+8)=18 | | n-50=8 | | -2(x-5)+10=-3(x+2)+2 | | 2g-10=8 | | (x-3)(x+3)+30=12x | | 1=(3x+22) | | x=7000/y |