Solve each system. Homework Help ✎
x + 2y + z = −1
4x − y − z = −1
−3y = 2z
Eliminate the denominators by
multiplying before trying to solve.
2x + y = 16
2x − 3y = −16
Solve the last equation for z in terms of y,
then substitute into the other two equations
to find x and y. Use those values to find z.