0,47х-0,14х=1,65 7/9х-2/3х=2

Question

0,47х-0,14х=1,65

7/9х-2/3х=2

Answer 1

0,47х-0,14х=1,65

0,33х = 1,65

х = 1,65/0,33

х = 5

 

7/9х-2/3х=2

7/9х - 6/9х = 2

1/9 х = 2

х = 2 : 1/9

х = 2/1 * 9/1

х = 18

Answer 2

х*(0,47-0,14)=1,65

х=1,65/0,33  х=5

 

х*(7-2*3)/9=2

х=2*9   х=18