Answer:
x=2 and y=1
Step-by-step explanation:
Add the two equations to remove "y" and solve for x:
4x+8y=16
6x-8y=4
________
10x=20
x=2
Plug x=2 into one of the original equations to get the value of "y":
4x+8y=16
4(2)+8y=16
8+8y=16
8y=8
y=1
Therefore, x=2 and y=1
Answer:
X=7
Step-by-step explanation:
8x-2y=48
8x-2(4)=48
8x-8=48
8(7)-8=48
56-8=48
To solve this problem, there is a very simple trick, once you see it. The first step is to subtract the second equation from the first equation. This gives:
6x + 6y = 60
Multiply by 5/3 to get 10x + 10y
10x + 10y = 60 * 5/3
10x + 10y = 100
