Respuesta :

wegnerkolmp2741o

Answer:

x=6

Step-by-step explanation:

x + y = 9

x - y = 3.

We can use elimination to find the value of x

Add the two equations together

x + y = 9

x - y = 3

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2x+0y = 12

2x = 12

Divide by 2

2x/2 = 12/2

x = 6

Answer:

x=6

Step-by-step explanation:

6+3=9

6-3=3. algebra