21-x=17 2x=10 6x=42 9x=81 20/x=2 3x=210, 43-x=39 43-x=20 100/x=4 2x=66  90/x=2, 11x=22 12x=36 48/x=12 8x=40 80/x=4, 16x=32 60/x=12 3x=18  210/x=21 144/x=12, x+15=-50 x-20=-60  x+18=6 x-12=-4, x+20=-40 x-8=-40 x+5=-5 x+6=20 , x+5=-20 48/x=12 x-10=20 x+15=65 x-10=80  , x/3=-20 5x=-75 x-8=-8 x+10=35 x/4=20, x+3=7 2x=30 98-x=80 120/x=2 5x=525, x÷-3=16 2x=-60 x+5=-19 x+7=-8 4x=48, x÷-12=8 x÷-2=27 x-9=-45 x-7=-25 x+8=3  , x÷-4=24 x+10=-54 x÷-5=12 x-6=-31 x÷2=9 180÷x=6, x÷=10=12 x÷-9=8 x+9=-36 x+3=-19 144÷x=-12 169÷x=-13,

1-step equations: least to greatest (extended version)

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