a) 10 – {[ x : 3 + 17_ : 10 + 3 . `2^4`] : 10 } = 5
b) 165 – (35 : x + 3) – 19 = 13
c) 2448 : [119 – (x-6)] = 24
giúp mk với ạ !
a) 10 – {[ x : 3 + 17_ : 10 + 3 . `2^4`] : 10 } = 5
b) 165 – (35 : x + 3) – 19 = 13
c) 2448 : [119 – (x-6)] = 24
giúp mk với ạ !
a) 10 – {[ x : 3 + 17_: 10 + 3 . $2^{4}$ ] : 10 } = 5
[ (x : 3 + 17) : 10 + 48 ] : 10 = 10 – 5
[ (x : 3 + 17) : 10 + 48 ] : 10 = 5
(x : 3 + 17) : 10 + 48 = 5.10
(x : 3 + 17) : 10 + 48 = 50
(x : 3 + 17) : 10 = 50 – 48
(x : 3 + 17) : 10 = 2
x : 3 + 17 = 2.10
x : 3 + 17 = 20
x : 3 = 20 – 17
x : 3 = 3
x = 3.3
x = 9
b) 165 – (35 : x + 3) . 19 = 13
(35 : x + 3) . 19 = 165 – 13
(35 : x + 3) . 19 = 152
35 : x + 3 = 152 : 19
35 : x + 3 = 8
35 : x = 8 – 3
35 : x = 5
x = 35 : 5
x = 7
c) 2448 : [119 – (x – 6)] = 24
119 – (x – 6) = 2448 : 24
119 – (x – 6) = 102
x – 6 = 119 – 102
x – 6 = 17
x = 17 + 6
x = 23
CHÚC BẠN HỌC TỐT!
a) 10 – {[ x : 3 + 17_: 10 + 3 . $2^{4}$ ] : 10 } = 5
[ (x : 3 + 17) : 10 + 48 ] : 10 = 10 – 5
[ (x : 3 + 17) : 10 + 48 ] : 10 = 5
(x : 3 + 17) : 10 + 48 = 5.10
(x : 3 + 17) : 10 + 48 = 50
(x : 3 + 17) : 10 = 50 – 48
(x : 3 + 17) : 10 = 2
x : 3 + 17 = 2.10
x : 3 + 17 = 20
x : 3 = 20 – 17
x : 3 = 3
x = 3.3
x = 9
Vậy x = 9
b) 165 – (35 : x + 3) . 19 = 13
(35 : x + 3) . 19 = 165 – 13
(35 : x + 3) . 19 = 152
35 : x + 3 = 152 : 19
35 : x + 3 = 8
35 : x = 8 – 3
35 : x = 5
x = 35 : 5
x = 7
Vậy x = 7
c) 2448 : [119 – (x – 6)] = 24
119 – (x – 6) = 2448 : 24
119 – (x – 6) = 102
x – 6 = 119 – 102
x – 6 = 17
x = 17 + 6
x = 23
Vậy x = 23
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