X+y=4
2x+y=6
make first equation negative
-x-y=-4
add to first equation
2x-x+y-y=6-4
x=2
subsitute
x+y=4
2+y=4
y=2
or
x+y=4
subtract x from both sdies
y=4-x
subsitute 4-x for y in second equation
2x+4-x=6
x+4=6
x=2
Step-by-step explanation:
first 16000× ( 20% × 13% )
then you will get answers
Domain=x is greater than or equal to -3
range=from -2 to infinity
Answer:
This is a easy question you can find the answer online. It was on a state exam and all the answers and work is shown how to do it.
Step-by-step explanation:
Answer:
-(-9) is 9
Step-by-step explanation:
-(-9)
(when there are two negatives multiplyed with eachother, the product will be postive)
+ 9
+ 9 = 9