Using elimination method, what will be the value of y after solving -x - y = 5 and -x + 4y = 15?
1 answer:
9514 1404 393
Answer:
y = 2
Step-by-step explanation:
The variable x can be eliminated by subtracting the first equation from the second.
(-x +4y) -(-x -y) = (15) -(5)
5y = 10 . . . . . . . simplify
y = 2 . . . . . . . . . divide by 5
You might be interested in
Answer:
18.6
Step-by-step explanation:
-3(-6.2)
~Expand
-3 * -6.2
~Multiply
18.6
Best of Luck!
Answer:
C- Money lost from a pocket
Step-by-step explanation:
It would be C because something is decreasing ( now a negative) from what they did have.
.7 is the answer to your question
M<BAD = m<BAC + m<CAD
m<BAD = 20 + 15
m<BAD = 35
<span>Angle Addition Postulate
answer
</span><span>Angle Addition Postulate</span>
