4 (5z+2y) (5z-2y) (Ignore this)
Apply the elimination method to the 2y terms since they are opposites & therefore can eliminate. Combine the rest of the terms, vertically.
x-2y= -7
4x+2y= 22
5x = 15
Divide both sides by 5.
x=3
Plug the x value to one of the original equations and solve for y.
4x + 2y = 22
4(3) + 2y = 22
12 + 2y = 22
Subtract by 12 on both sides.
2y = 10
Divide by 2 on both sides.
y = 5
Therefore, the solution to the system of equations shown is:
x=3 y=5
or
as an ordered pair (3, 5).
Answer:
y=3x+5
Step-by-step explanation:
See attached image
Answer:

Step-by-step explanation:
15% of x = 27

15% of 180 is 27.
Answer:
search up the formula
Step-by-step explanation: