Question

2. Which of the following ordered pairs (x,y) satisfies the system of equations below?

x + y = 0
3x – 2y = 10
(3,2)
b. (2,-2)
(-2, 2)
d. (-2,-2)
a.
C.
timotor the nrice of a inh, in dollars, using the expression 60+

Answer 1

x=2, y=-2

(2, -2)

Explanation:

x + y = 0

3x - 2y = 10

3x - 2(0 - x) = 10 ( 2(0 - x) = -2x )

3x - (-2x) = 10 ( y = -x )

3x + 2x = 10

5x = 10

x = 2

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