(1-60%)x=8

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(1-60%)x=8(1-60%)x=8(1-60%)x=8(1-60%)x=840%x=80.4x=8x=20(1-60%)x=80.4x=8x=20x=20

(1-60%)x=8
(1-60%)x=8

(1-60%)x=8
(1-60%)x=8
40%x=8
0.4x=8
x =20

(1-60%)x=8
0.4x=8
x=20

x = 20