Question

X+15=3 x X - 9

Answer 1

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 2

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 3

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 4

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 5

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 6

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12

Answer 7

X + 15 = 3 x X - 9

15 + 9 = 3 x X - X

24 = 2 x X

X = 24 : 2

X = 12

Vậy X = 12