Question

[6.02] For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?

-x - 2y = -4
3x + y = 12

Answer 1

-x=-4+2y
Multiply both the sides by -1 to get x

x=4-2y

Answer 2

@LoveYou*69 Did you understand it?

Answer 3

Now substitute it in second equation
3(4-2y) + y = 12

Answer 4

Okay! Thanks! and yea ash i knew the answer i was just making sure it was right lol :)

Answer 5

so is the answer -2y+4