CPM Homework Help : CC3 Problem 9-117

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9-117.

Solve each system.

$y = 2x + 1 \\y = −3x − 4$
Hint (a):
Set the two equations equal to each other, then solve for $x$ .
Step 1 (a):
$-3x - 4= 2x +1$
Step 2 (a):
$−4 − 1 = 2x + 3x$

$y = \frac { 1 } { 3 }x + 4\\y = \frac { 1 } { 2 }x − 2$
Hint (b):
Use the method that you used to solve part (a).
See the hints for part (a) for more help.
Answer (b):
$(36, 16)$

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