I think it is -3/4 im pretty sure
Multiply the first equation by -2 to give
4x - 2y = 6
-x + 2y = 3 Adding:-
3x = 9
x = 3
Plug x = 3 into second equation:-
-3 + 2y = 3
2y = 6
y = 3
Answer is x=3, y = 3
Answer:
9.354kg
Step-by-step explanation:
Answer:
You can buy 3 books 4 x 3 = 12
Step-by-step explanation:
The answer is 280 because if you multiply 400 by .3 you get 120 and if you subtract 120 from 400 you get 280
