Using elimination to solve the system 2x + y = 8 and x + y = 4, which of the following could be the first step?
1 answer:
Answer: the option A.
The elimination method consist is adding the two equations in a way that one variable be eliminated..
In order to do that you might have to manipulate on of the equations prior to add the two equations.
In this case, ff you multiply the second equation by - 1 you will get
- x - y = - 4
which you can add to the first equation
2x + y = 8 to eliminate the y.
You might be interested in
For a cartesian equation

Given r = <span>10 tan(θ) sec(θ)

Therefore,</span>the curve is a parabola opening upward with vertex (0, 0).
Answer:
<em>(IQR) interquartile range: 12 - 9 = 3</em>
Step-by-step explanation:
Median: 10
Lower quartile: 9
Upper quartile: 12
Interquartile Range: 12 - 9 = 3
It would be 67,437,000,000 since the eight in 67,436,(8)28,104 rounds the 6 up to a 7.
answer: -5x+12=20
-12 -12
-5x/-5= 8/-5
x= -1.6
Check: rewrite the orignal problem
plug your variable
Answer:
Yes.
Step-by-step explanation: