Answer:
This is super nice!
I'm not a lot of people appreciate this :)
Step-by-step explanation:
x= 9
y= 9
4x -2y= 18.................equation 1
-4x + 2y= -18...............equation 2
From equation 1
4x= 18 + 2y
x= 18 + 2y/4
substitute 18+2y/4 for x in equation 2
-4(18+2y/4) -2y= 18
-(18+2y)-2y= 18
-18-2y-2y= 18
-18+4y= 18
4y= 18+18
4y= 36
y= 36/4
y= 9
Substitute 9 for y in equation 1
4x-2y= 18
4x-2(9)= 18
4x-18= 18
4x= 18+18
4x= 36
x= 36/4
x= 9
Hence the value of x is 9 and the value of y is 9
Read more on substitution here
brainly.com/question/28112905?referrer=searchResults
#SPJ1
Answer:
1. (x - 5), (x + 1)
2. (x + 5), (x -2)
Step-by-step explanation:
1. x^2 - 4x -5
Find two numbers that both multiple to -5 and add to -4 (-5 and 1)
(x - 5), (x + 1)
2. x^2 - 3x - 10
--same concept for these question
What two numbers multiple to equal -10 and add to equal 3?
5 and -2
(x + 5), (x - 2)
If you need help the answer is 14 use long division or just subtract all depending on what the numbers are.
Answer:
2000
Step-by-step explanation:
900/45*100=20*100=2000
