Answer:
x = 1 (Option C)
Step-by-step explanation:
3x - 4y = -5 (1)
-3x - 4y = -11 (2)
On adding
3x - 4y - 3x - 4y = -11 + 5
6x = 6
x = 6/6
x = 1
The 4 is in the tenth place...so you have to look at the number beside it to see if you round up or down. It's a 6, which is greater than 5 so you round up.
3.5
