CPM Homework Help : CCG Problem 9-11

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Home > CCG > Chapter 9 > Lesson 9.1.1 > Problem 9-11

9-11.

Solve each system of equations below. Write your solution in the form $(x, y)$ . Check your solution.

$3x − y = 14\\ x = 2y + 8$
Hint (a):
Use substitution to solve
for both variables.
Answer (a):
$(4, −2)$

$x = 2y + 2\\ x = −y −10$
Hint (b):
Set the two equations equal to each other.

$16x − y = −4\\ 2x+y=13$
Hint (c):
Use elimination to solve
for the two variables.
Answer (c):
$(\frac{1}{2},12)$

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