Question

20. If x + 2y = 7 and 2x - y = 4, find x + y. *
(1 Point)
-1
-5
O 5
1​

Answer 1

Step-by-step explanation:

x+2y=7

x=7-2y...........,(1)

2x-y=4...........(2)

sub eq(1) in eq2

2(7-2y)-y=4

14-4y-y=4

14-5y=4

-5y=-10

y=2

x=7-2(2)

x=7-4

x=3

x+y=3+2

x+y=5

Answer 2

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