Answer:

Step-by-step explanation:
Given:

Let us assume that this equation is equal to 0.
Hence 
Now Solving the above equation we get,

Hence by solving the equation we get 
Answer:
i think it's 10 lmk if it's wrong lol
3x - y = 10 . . . (1)
-x + y = 12 . . . (2)
(1) + (2) => 2x = 22 => x = 22/2 = 11
From 2, -11 + y = 12 => y = 12 + 11 = 23
The answer is………… pie u got this buddy don’t give up
40 is 50% of 80.
80 ÷ 2 = 40