Question

4. Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the two numbers.

Answer 1

Answer:9 & 7

Explanation:

Let x be the first number and y be the second.

2x + y = 25

3x - y =20

1) Add them together.

5x = 45

x = 9

2) Solve for y.

2(9) + y = 25

y=7

3) Check your work on the other equation.

3(9) - (7) = 20

27 - 7 =20

20 = 20