Question

An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are shown below:

y = x + 20
y = –x + 2

Which is a correct step to find x and y?


A. Multiply the equations to eliminate y.
B. Add the equations to eliminate x.
C. Write the points where the graphs of the equations intersect the x-axis.
D. Write the points where the graphs of the equations intersect the y-axis.

Answer 1

plz help anyone i will medal!

Answer 2

i would say b ...

Answer 3

It's b

Answer 4

but ....

Answer 5

but u have y and two values

Answer 6

wouldnt you subtract both sides since its addition ...

Answer 7

on one side ...

Answer 8

b sounds legit cuz you wouldnt multiply and you dont have a graph ...

Answer 9

god i feel like a idiot ...

Answer 10

"The number y is also x less than 2" i guess it must be y=x-2 or not @jakashaka123 ?

Answer 11

yeah as i said

Answer 12

i just noticed ...

Answer 13

and so i was correct 2 with it being b ...

Answer 14

thank you for the help ppls i thought it would be B too. But i was not sure!

Answer 15

yeah it ok =)