Solve the linear system of three equations.

x+y+z=−4
−=
+=−5

answer:

c. the third graph

$12. that is my answer.

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5