Tìm X
X x 7 = 2017
Tính nhanh
2017 x 7 - 2017 x 4 - 2017 x 3 + 2017
Tìm x biết
x + 2004 = 2017
x + 1980 = 2017
x + 1971 = 2017
tìm x biết :2015<x*6+720<2017
x=
Tìm X.
a) X x 7 = 49 b) X : 7 = 6
Tìm x
a) X + 15 = 20 b) X – 18 = 16 c) 72 – x = 50
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d) X x 7 = 42 e) X : 7 = 5 f) 49 : x = 7
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Tìm x:
x :7= 100 + 8
x ´ 7 = 357
a x 2 + a x 3 + 2017 = 7012
Tìm x
a) 12 : x = 3 b) 21 : x = 7 c) 30 : x = 3
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d) X : 7 = 4 e) 20 : x = 5 f) X x 6 = 42
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