Tìm số tự nhiên
Bài 2: Tìm số tự nhiên
1) (2x - 1)³= 28 - 12020
3) 89-(73-x) = 20
5) 45 – (5 — 2x)³ = 2.3²
7) 10+2x = 45:4³
9) 2(x-3) - 12 = 10
11) 23.x-21 = 56:54
13) (7x-24).54 = 56
15) 4x = 64
17) (2x + 1)³= 9.81
19) 4.(x+2)³-7=101
X,
biết:
2) 45-(5-2x)³ = 2.3²
4) (2x - 1)³=28-12020
6) 89-(73-x) = 20
8) 160 - (x+2) = 85:8³
10) 185-3.(x-5)=5.4²
12) 2(x +19) = 60
14) (x-20):5= 40
16) 3.2x - 3=45
18) (3x-4)³ = 7+12018
20) (4 +5x).38 = 310
L