x - y = 9
x + 2y = -6
Choose one answer.
a. (5,4)
b. (4,-5)
c. (4,5)
d. (-5,-4)

x - y = 9
x + 2y = -6
Choose one answer.
a. (5,4)
b. (4,-5)
c. (4,5)
d. (-5,-4)

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x - y = 9
x + 2y = -6
subtract the two equations simulataneously
-3y = 15
y = -5
now solve for x

Subtract the two equations what you got??

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