Question

X + 3y = 9 and x - 3y = 8?

Answer 1

x=17/2, y=3/2. (17/2, 3/2).

Explanation:

x+3y=9

x-3y=8

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2x=17

x=17/2

17/2-3y=8

3y=17/2-8

3y=17/2-16/2

3y=1/2

y=(1/2)/3

y=(1/2)(3/1)

y=3/2

Answer 2

This help you

Explanation:

y graphical method