Question

find the common solution x + y = 7 and x - y = 2​

Answer 1

Answer:

x=4.5, y=2.5

Step-by-step explanation:

Adding the two equations, we get

2x=9

x=4.5

From equation 2, we get x-y=2

y = x-2 = 4.5-2 = 2.5

Therefore x=4.5, y=2.5

Also, x=9/2, y=5/2

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