Answer:
x=9
Step-by-step explanation:
Using elimination method.
Add equation 1 to equation 2
x + y = 11
x - y = 7
---------------
2x + 0 = 18
Divide both sides by 2
2x = 18
---- ----
2 2
x = 9
Answer:
12.
Step-by-step explanation:
3, 4, and 12 all divide into 12 .
Answer:
The answer is (1/2)z - x - 3y
Step-by-step explanation:
∵ 
∵ 
∵ 
∵ 
∴ 
∴ 
∴ 
It is closer to 1. 5/6 is 16 less than 1 and 5/6 is 1/3 more than 1/2, so it would be closer to 1.