Tìm x biết:
a, x – 27 = 5 × 9
b, x + 13 = 80 : 2
c, x × 4 = 32
d, x : 8 = 5
Tìm x biết:
a, (x + 15)÷8 = 7
b, (x - 23)÷8 = 12
c, 24 = (x + 5)÷5
d, (x - 8)÷7 = 11
Tìm x biết:
a, ( x – 266) : 5 = 7
b, (x - 129) × 4 = 36
c, 786 – x = 5 × 4 : 2
d, x + 24 : 4 × 3 = 285
Tìm x biết:
a, (x + 72) × 4 = 320
b, (x - 56) × 7 = 749
c, (x + 3) × 4 = 36
d, (x - 5) × 6 = 72
Tìm x biết:
a, x – 28 = 750
b, x + 211 = 619
c, x – 20 = 830
d, x + 16 = 106
Tìm x
a, x : 3 = 1527
b, x : 7 = 1823
c, x : 5 = 2356
d, x : 4 = 9872
Tìm x:
a, x : 8 = 3721
b, 24860 : x = 5
c, 49623 + x = 78578
d, 78026 – x = 69375
Tìm x biết:
a, (x + 9)×9 = 81
b, (x + 24)÷9 = 7
c, x - 56 = 8×9
d, x + 25 = 9×10
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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