Toán Lớp 7: bai1: tìm x biêt
a) |x – 4/5| = 3/4
b) 6-|1/2 – x| = 2/5
c) |14 – 3x/2 – 1|=9
d)|x + 3/5 | – 1/2 = 1/2
bai2: tìm x biết
a) |5/4 x – 7/2 = |5/8 x + 35|
b)| 2/3x – 1|=( 5/3x – 2 )
c) |5x – 7/2| = (2x + 3)
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Toán Lớp 7: bai1: tìm x biêt
a) |x – 4/5| = 3/4
b) 6-|1/2 – x| = 2/5
c) |14 – 3x/2 – 1|=9
d)|x + 3/5 | – 1/2 = 1/2
bai2: tìm x biết
a) |5/4 x – 7/2 = |5/8 x + 35|
b)| 2/3x – 1|=( 5/3x – 2 )
c) |5x – 7/2| = (2x + 3)
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