Step-by-step explanation:
-3x + 7y = 5x + 2y (you subtract the 2y from both sides)
-3× + 5y = 5x (then add 3x to both sides)
5y = 8x (use x = - 5)
5y = 8x - 5 = -40 (both sides are divided by 5)
y = -8
answer is (-5, -8)
Answer:
f=3d/k
Step-by-step explanation:
Hey there!
Assuming you meant
If so, follow these steps so it can be a little bit easier to solve
Firstly, we have to 
by 
on each of your sides
We get: 
Now, we have 
by 
on each of your sides
We get: 
± 
Therefore , your answer is: ±
Good luck on your assignment and enjoy your day!
~
Divide 8.5 by .3 and get 28.3333. She can't make tacos with the extra .3 pounds so the answer is 28 tacos
70, Multiply 5 pieces by 12 friends and you get 60, then add the 10 pieces he originally took out, and you get 70
