Question

PLEASE HELPPPPP

Answer 1

6.02] and [6.03] Part 1:
Solve the following system of equations. Please show your work to receive full credit.
x - y = 16
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.

Answer 2

First:
x = 16 - y
2x + y = 2

Then you take the value of x that you found ( 16 -y ) and replace it by x on the second equation:
x = 16 - y
2(16-y) + y = 2
So
x = 16 - y
32 - 2y + y = 2
And
x = 16 - y
-y = -30 => y = 30
Thus x = 16 - 30 = -14

Answer 3

This is a simple method of direct subsitution. You could use matrices, but due to its simplicity its not worth the effort.

Answer 4

Oh my gosh thank you soooooooooooooooooooooooo much.!!

Answer 5

my bad. the first equation should read x = 16+ y. You can adjust acoordingly however, the rest of the maths are correct.

The end result is y = -10, x = 6

Answer 6

hi kaylaaa
add both the equations you'll get
3y=18
y=6 and now substitute back value of y in any one of the equation to get the value of x
say , i choose 2nd one
2x=2-6
x=-2
y=6
:)
the method i choose to solve is called elimination method where you try to reduce one of the variable by multiplying with some no., you can choose substitution and multiplication method also..:)

Answer 7

THank you so much.! (: