Answer:
option c 1000
Step-by-step explanation:
...................

so if x = -1, let's plug that in the second equation
-5(-1)+y = 5
5+y = 5
y = 0
Answer:
d
Step-by-step explanation:
Answer:
3.5
Step-by-step explanation:
(42 - 14)/(12 - 4) = 28/8 = 7/2 = 3.5
Add them together
e.g - 5a +6+6a+7
= 11a+13