Question

2x+y=7;4x+y=5 simultaneously​

Answer 1

Answer:

x is -1

y is 9

Step-by-step explanation:

2x+y=7

y = 7 - 2x --(1)

4x+y=5 --(2)

Put value of y in 3q.--(2)

4x + 7 - 2x = 5

2x = 5 - 7

2x = -2

x = -2/2

x = -1

Put value of x in eq.--(1)

y = 7 - 2(-1)

y = 7 - (-2)

y = 7 + 2

y = 9