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-9k=0
k=0/-9
k=0
| 11c=209 | | -7/9=b/9 | | -4.4r-2=-5.5r-4.2 | | 1.75x+1=8x+36 | | 13-2.2x=53-1.8x | | 4x+40=152 | | 8(3)^(x-2)=32 | | 53/345+6+12+43/64=63-7567*32-r | | 29x=145 | | 1.25x+1=8x+36 | | x+3/2=-8 | | 2u+7=–7+9u | | 12+43/64=63*32-r | | 4t–t=6+t | | (x+3)^{2}+4=1 | | 2x+4x+5+20=1670 | | 2x-3÷5=x+3÷3 | | -2(1-5f)=28 | | 2x*3.14=10 | | 2x+4–3x=-9+x+5 | | -x+4x+55=180 | | n×9=81 | | 3÷5x+12=18 | | 25+u=26 | | 4x3x=48 | | 1.7n+12.6=-4.6n | | 7(x+7)=73 | | t×9=18 | | 25x+450=12950 | | 1=-10a | | X+7-3x+3=42 | | 7^(x)-7^(-x)=6 |