Question

9x-4y=20 find difference​

Answer 1

Answer:

9x-4y=205y=20y=20/5y=4

Step-by-step explanation:

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Answer 2

Answer:

putting value of y as 4 so then multiplying by 4 we get - 16 then sending the value i.e 20 + 16 we will get 36 then finding the value of x which will be 4 then putting the value of x in equation we will get value 9f y as 4 then the difference will be 0