Answer:
The answer is <u>80</u>
Step-by-step explanation:
78.74 is closer to 80 than it is to 70.
You can multiply either the top or bottom equation by -1 so lets say you apply it to the bottom equation it’ll look like this:
-9x + 9y = 18
6x - 9y = 12
then the +9y and -9y will cancel out
-9x = 18
6x =12
then you add the two equations together
-3x = 30
divide both sides by -3
x = -10
Answer: i can’t read it could try upload it again
Explanation: Henlo :3
Answer:
=−5.75x−17.4
Step-by-step explanation:
=−0.25x−8+−1(5.5x+9.4)
=−0.25x+−8+−1(5.5x)+(−1)(9.4)
=−0.25x+−8+−5.5x+−9.4
another way >>>><<<<
=−0.25x+−8+−5.5x+−9.4
=(−0.25x+−5.5x)+(−8+−9.4)
=−5.75x+−17.4
Answer:
=−5.75x−17.4
