CPM Homework Help : A2C Problem 13-123

Solve each system of equations. Explain the graphical implications of your answer.

$3x − 2y = −10\\ 4x + y = 49$
Answer (a):
$\left(8, 17\right)$
What does this mean about the graphs of the two equations?

$7x − 2y = 11\\ 14x − 4y = 3$
Hint (b):
Multiply the first equation by (−2) and add the two equations.