Question

Find the value of x and y given (2x – y, 25) = (15, 2x + y)?

Answer 1

Answer:

solution of the equation is ( x , y ) = ( 10 , 15 )

Step-by-step explanation:

(2x – y, 25) = (15, 2x + y)

.: 2x – y = 15. ___ equation 1

2x + y = 25. ___ equation 2

Add equation 1 and equation 2

(2x – y) + (2x + y) = 15 + 25

2x – y + 2x + y = 15+ 25

4x = 40

x = 10

substituting value of x in equation 1

2x - y = 15

2(10) - y = 15

20 - y = 15

20 - 15 = y

y = 5