EDGE Math 8

Solve each system of linear equations. Choose the correct answer.

1.	${\begin{array}{l} - x + y = 3 \\ x + y = 3 \end{array}$

(3, 0)

(−3, 0)

(0, 3)

none of the choices

Answer: (0, 3)

2.	${\begin{array}{l} 2 x - y = - 1 \\ y = 5 \end{array}$

(2, 5)

(0, 5)

(0, 1)

none of the choices

Answer: (2, 5)

3.	${\begin{array}{l} - 2 x + 2 y = 3 \\ x - 2 y = - 3 \end{array}$

(0, \frac{3}{2})

(- \frac{3}{2}, 0)

(−3, 0)

none of the choices

Answer: $(0, \frac{3}{2})$

4.	${\begin{array}{l} x - 3 y = - 7 \\ 2 x + y = 0 \end{array}$

(−1, −2)

(1, −2)

(−1, 2)

none of the choices

Answer: (−1, 2)

5.	${\begin{array}{l} 2 x + 4 y = 3 \\ 5 x - y = 2 \end{array}$

(\frac{1}{2}, \frac{1}{2})

(\frac{3}{2}, 0)

(\frac{9}{2}, - \frac{3}{2})

none of the choices

Answer: $(\frac{1}{2}, \frac{1}{2})$

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