Question

Divide 25 into two parts such that 7 times the first part added to 5 times the second part makes 139.

Answer 1

Heya

Here goes your answer

Let the first part be x and the second be 25-x

According to the question,

7(x)+5(25-x)=139

7x+125-5x=139

2x+125=139

2x=139-125

2x=14

x=14/2

x=7

The first part = x = 7

The second part = 25-x = 25-7 = 18

Answer 2

Answer:

7x + 5 (25 - x) = 139

7x + 125 - 5x = 139

2x = 139 -125

2x = 14

x =7

Second part = 25 - x =

25 - 7 = 18

Therefore it is 7 and 18.

Hope it helps!!!!