44.1k views
23 votes
:
(2x – Зу = 18
(2x + y = 2

User Prodigga
by
3.7k points

2 Answers

6 votes

Answer:

2x = 2 × 12 = 24 24 =2x 24-6=18

3y = 3 × 2 = 6 6 =3y

2x = 2×1 = 2 2 =2x 2+0=2

y = 0 0 = y

Explanation:

I'm not sure how the question is mentioned in the test but from my point of view I got this not sure how the it is explained in your nest im only 11 so yeh. sos if its wrong

User Dibish
by
5.1k points
12 votes

Answer:

y = -4

x = 3

Explanation:

I will be using the elimination method to solve this:

Begin by times -1 to the bottom equation.


2x-3y=18


-2x-y=-2

Add them together


0x-4y=16

ignore the 0x and divide -4 to both sides


(-4y)/(-4) =(16)/(-4)

y = -4

Plug y back into one of the two original equations


2x-3(-4)=18

multiply -3 and -4 to get +12


2x+12=18

subtract 12 to both sides


2x=6

divide by 2 to both sides

x = 3

User Jessehouwing
by
4.4k points