Thực hiện các phép tính 's Nam 25-7

4(x – 5) – 2³ = 2⁴.3

(a)  

5(x + 7) – 10 = 2³.5

(a)  

15 : (x + 2) = 3

(a)  

20 : (1 + x) = 2

(a)  

240 : (x – 5) = 2².5² – 20

(a)  

96 - 3(x + 1) = 42

(a)  

27 . 75 + 25 . 27 – 150

(a)  

142 - [50 - (2³.10 - 2³.5)]

(a)  

375 : {32 – [ 4 + (5. 3²– 42)]} – 14

(a)  

500 −{5 × [409 − (2³ × 3 − 21)²] − 1724}

(a)