(1-60%)x=8
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(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
(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