fan and medal one easy question

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

a.-2y - 4

b.2y - 4

c.2y + 4

d.-2y + 4

Question

fan and medal one easy question

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

 a.-2y - 4

 b.2y - 4

 c.2y + 4

 d.-2y + 4

anonymous · Answer

@amistre64 
do u think u can help?

amistre64 · Answer

just isolate x in the first eqauton

anonymous · Answer

by isolate do you mean take away or like put in (x)
@amistre64

amistre64 · Answer

get the little x all by itself

anonymous · Answer

do i just add x to the - x
@amistre64

amistre64 · Answer

add x to both sides is fine

-x - 2y = -4
+x           +x
------------
     -2y = x-4

what next

anonymous · Answer

plus 4 on each side, right?
-2y+4=x ?
@amistre64

amistre64 · Answer

very good

anonymous · Answer

thats all!?

amistre64 · Answer

well, the next step is to pick the option that matches it ...

anonymous · Answer

of course! So D right? haha

amistre64 · Answer

yep :)

anonymous · Answer

Thank you soooo much :)