Evaluate 27 - 45.
- 10 - 2 =
15 - (-4) =
72648 รท18
Y= - 2x+1
4/9 + 1/3
Solve:
3/2 a+2/1=3 2/1
3/2 a+ 2/1= 3 2/1
4y=2x-4
x+y=3
y-x=3
