Solve by elimination.
-$x+y=9$
$x-y=-3$
A) $(-3,7)$
B) $(3,6)$
C) No solution
D) $(2,7)$

Name: Solve by elimination. -$x+y=9$ $x-y=-3$ A) $(-3,7)$ B) $(3,6)$ C) No solution D) $(2,7)$
Brand: Quizplus
Rating: 4.7 (37 reviews)

Question

Quizplus · Accepted Answer

Adding the two equations $x + y = 9$ and $x - y = -3$ eliminates $y$, giving $2x = 6$, so $x = 3$. Substituting $x = 3$ into the first equation gives $3 + y = 9$, so $y = 6$. Therefore, the solution is $(3, 6)$.

Solve by Elimination x+y=9x+y=9x+y=9 x−y=−3x-y=-3x−y=−3 A) (−3,7)(-3,7)(−3,7) B) (3,6)(3,6)(3,6) C) No Solution D) (2,7)(2,7)(2,7)

Solve by Elimination $x+y=9$ $x-y=-3$ A) $(-3,7)$ B) $(3,6)$ C) No Solution
D) $(2,7)$