Question

solve the following system of equations. 2x=4 2x-y=5 i will give a medal

Answer 1

2x = 4
x = 2

plug in x in 2x - y = 5 and solve for y

Answer 2

2x - y = 5
2(2) - y = 5
4 - y = 5
-y = 1
y = -1

(2,-1)

Im sorry that isnt one of your answer choices, did you type the equations right in your question?

Answer 3

Yes can u help me with 2 more plz

Answer 4

sure, post em

Answer 5

find the y-intercept of 5x+2y=10 My answers include: (0,2), (0,5), (2,0), (5,0) is the first one

Answer 6

the 2nd one is: which of the points is not a solution to -4x-2y=8? My answers include: (-2,0), (0,-4), (1,-6), (1,2)

Answer 7

number 1) set x to 0 and solve for y
number 2) plug in the values for x and y. if the answers do not match (such as 8 = 8) then it is not inclided

Answer 8

confused??

Answer 9

number 1:
5x+2y=10
5(0) + 2y = 10

solve for y in the above equation

number 2:
you know the coordinates are (x,y) right?
I will use the coordinates (-2,0) as an example
-4x - 2y = 8
-4(-2) - 2(0) = 8
solve and repeat with other coordinates

Answer 10

thanks

Answer 11

no problem