CPM Homework Help : A2C Problem 11-145

Solve the system below.

$\left. \begin{array} { r } { \frac { z + y } { 4 } + \frac { z - y } { 2 } = 1 } \\ { \frac { 3 z - y } { 4 } + \frac { 4 z + 2 y } { 11 } = 3 } \end{array} \right.$

Hint:

In the first equation, find the least common denominator and simplify.

$z + y + 2z − 2y = 4$

Now solve for y.

Hint 2:

Use the same process for the second equation.

More Help:

Substitute the value you found for y into the answer from the second hint.

Answer:

$y = 5 z = 3$