Answer:
1065
Step-by-step explanation:
57-42×-3-21
Answer:
7/5, y = -3/10
Step-by-step explanation:
Answer:
x=3
y=-1
Step-by-step explanation:
first multiply the 2nd row by 2 so you will get
4x-4y=16
4x+2y=10
then subtract the 2nd row from the first row and so you will get
-6y=6
then solve for y in the above equation
y=-1
then substitute y=-1 into any 2 equations .
i picked the first 1
4x-4 × -1=16
then solve for x .
you will get
x=3
Answer:
i think its 7n/4
Step-by-step explanation:
