Question

What are the values of x and y in this linear system?

2x + 3y = 8
x + 2y = 12

Answer 1

A. x = 24, y = 8
B. x = 16, y = -20
C. x = -8, y = -16
D. x = -20, y = 16

Answer 2

@gorv @g17

Answer 3

Well what method have you been doing lately to solve this type of problem?

Answer 4

Solving Linear Systems Using Substitution

Answer 5

x+2y=12
x=12-2y
put this value of x in other equation and solve

Answer 6

Well ok the best way I see is if you solve for x on both equation since the bottom equation already has x by itself with no coefficient.

Answer 7

Or you don't have to solve for x on the top equation sorry....thats just the way I like to do it just follow what g17 does it seems to be easier to follow.

Answer 8

2(12-2y)+3y=8?

Answer 9

Yes now distribute and solve for y

Answer 10

24-4y+3y=8
24 -1y = 8
-24 -24
-------------
-1y=-16
y= 16?

Answer 11

thanks

Answer 12

yeah now all you need is the x.....just play y=16 to either equation and solve for x again. and you are done. good job