Question

x + y = 4
2x + 3y = 11(substitution method)​

Answer 1

Answer:

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Yes

Step-by-step explanation:

x+y=4

y=4-x

substitute in 2nd equation

2x + 3(4-x) = 11

2x + 12 -3x =11

x= 12-11 = 1

y =4-1 = 3

Answer 2

Answer:

Refer to the attachment...