5x=125
Mà: 53=125
=>x=3
32x=81
Mà: 34=81
=>32x=34
=>2x=4
=>x=4:2
=>x=2
52x-3-2.52=52.3
=>52x-3-50=75
=>52x-3=75+50
=>52x-3=125
Mà: 53=125
=> 52x-3=53
=>2x-3=3
=>2x=3+3
=>2x=6
=>x=6:2
=>x=3
5x=125
Mà: 53=125
=>x=3
32x=81
Mà: 34=81
=>32x=34
=>2x=4
=>x=4:2
=>x=2
52x-3-2.52=52.3
=>52x-3-50=75
=>52x-3=75+50
=>52x-3=125
Mà: 53=125
=> 52x-3=53
=>2x-3=3
=>2x=3+3
=>2x=6
=>x=6:2
=>x=3
5x=125
Mà: 53=125
=>x=3
32x=81
Mà: 34=81
=>32x=34
=>2x=4
=>x=4:2
=>x=2
52x-3-2.52=52.3
=>52x-3-50=75
=>52x-3=75+50
=>52x-3=125
Mà: 53=125
=> 52x-3=53
=>2x-3=3
=>2x=3+3
=>2x=6
=>x=6:2
=>x=3
5x=125
Mà: 53=125
=>x=3
32x=81
Mà: 34=81
=>32x=34
=>2x=4
=>x=4:2
=>x=2
52x-3-2.52=52.3
=>52x-3-50=75
=>52x-3=75+50
=>52x-3=125
Mà: 53=125
=> 52x-3=53
=>2x-3=3
=>2x=3+3
=>2x=6
=>x=6:2
=>x=3
5x=125
Mà: 53=125
=>x=3
32x=81
Mà: 34=81
=>32x=34
=>2x=4
=>x=4:2
=>x=2
52x-3-2.52=52.3
=>52x-3-50=75
=>52x-3=75+50
=>52x-3=125
Mà: 53=125
=> 52x-3=53
=>2x-3=3
=>2x=3+3
=>2x=6
=>x=6:2
=>x=3
5x = 125
=> 5x = 53
=> x = 3
32x = 81
=> 32x = 34
=> 32x = 32.2
=> 2x = 2.2
=> x = 2
52x-3 - 2.52 = 52 . 3
=> 52x-3 - 50 = 75
=> 52x-3 = 75 + 50
=> 52x-3 = 125
=> 52x-3 = 53
=> 2x - 3 = 3
=> 2x = 3 + 3
=> 2x = 6
=> x = 6 : 2
=> x = 3
5x = 125
=> 5x = 53
=> x = 3
32x = 81
=> 32x = 34
=> 32x = 32.2
=> 2x = 2.2
=> x = 2
52x-3 - 2.52 = 52 . 3
=> 52x-3 - 50 = 75
=> 52x-3 = 75 + 50
=> 52x-3 = 125
=> 52x-3 = 53
=> 2x - 3 = 3
=> 2x = 3 + 3
=> 2x = 6
=> x = 6 : 2
=> x = 3
5x = 125
=> 5x = 53
=> x = 3
32x = 81
=> 32x = 34
=> 32x = 32.2
=> 2x = 2.2
=> x = 2
52x-3 - 2.52 = 52 . 3
=> 52x-3 - 50 = 75
=> 52x-3 = 75 + 50
=> 52x-3 = 125
=> 52x-3 = 53
=> 2x - 3 = 3
=> 2x = 3 + 3
=> 2x = 6
=> x = 6 : 2
=> x = 3
5x = 125
=> 5x = 53
=> x = 3
32x = 81
=> 32x = 34
=> 32x = 32.2
=> 2x = 2.2
=> x = 2
52x-3 - 2.52 = 52 . 3
=> 52x-3 - 50 = 75
=> 52x-3 = 75 + 50
=> 52x-3 = 125
=> 52x-3 = 53
=> 2x - 3 = 3
=> 2x = 3 + 3
=> 2x = 6
=> x = 6 : 2
=> x = 3