Question

please answer this anybody fast with better understanding ​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

4x-y=7

2x+9y=13

multiply the second equation by 2

(2x + 9y = 13 ) *2

4x+18y=26

4x-y=7

4x+18y=26

subtract both equations

we get:

-19y  =  -19

y = 1

and then 4x-y=7

                4x-1=7

                 4x=8

                   x=2