Question

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

Answer 1

Let x be the one part, and other part will be (25 - x)

Therefore,

7x + 5(25 - x) = 139

7x + 125 - 5x = 139

2x = 139 - 125 = 14

x = 7

And the second part is (25 - 7) = 18

Answer 2

Answer:

Let x be the one part, and other part will be (25 - x)

Therefore,

7x + 5(25 - x) = 139

7x + 125 - 5x = 139

2x = 139 - 125 = 14

x = 7

And the second part is (25 - 7) = 18

Step-by-step explanation: