Question

rezolvati ecuatia din poza

Answer 1

0,5 : [ 1/3 + 1/3^2 - 15/90] = 3x/5

5/10 : [1/3 + 1/9 - 15/90] = 3x/5

1/2 : [ 30/90 + 10/90 - 15/90] = 3x/5

1/2 : 25/90 = 3x/5

1/2 × 90/25 = 3x/5

90/50 = 3x/5

9/5 = 3x/5

5×3x = 9×5

3x = 9

x = 9 : 3

x = 3

Answer 2

0,5 : [1/3 + 1/3² - 15/90] = 3/5 * x
5/10 : [30/90 + 10/90 - 15/90] = 3x/5
5/10 : 25/90 = 3x/5
5/10 * 90/25 = 3x/5
9/5 = 3x/5
x = 9/3
x = 3