MATH HELP! WILL GIVE MEDAL AND FAN!

A student is trying to solve the system of two equations given below:

Equation P: x + y = 8
Equation Q: 2x + 5y = 24

Which of the following steps can be used to eliminate the x term?

A) 2(x + y = 8)
B) −2(x + y = 8)
C) −1(2x + 5y = 24)
D) −2(2x + 5y = 24)

Question

MATH HELP! WILL GIVE MEDAL AND FAN!

A student is trying to solve the system of two equations given below: 

Equation P: x + y = 8 
Equation Q: 2x + 5y = 24 

Which of the following steps can be used to eliminate the x term?

 A) 2(x + y = 8)
B) −2(x + y = 8)
C) −1(2x + 5y = 24)
D) −2(2x + 5y = 24)

anonymous · Answer

@ParthKohli  @AriPotta

anonymous · Answer

@Nnesha @adamanderson @shrutipande9

nnesha · Answer

in order to cancel out x you have to have 
one positive 2x and other should be -2x

nnesha · Answer

doest it make sense @charmancler

anonymous · Answer

@Nnesha  thank you so it would be D?

nnesha · Answer

nope @charmancler

nnesha · Answer

if you multiply second equation by -2 
then you still don't have same coefficient for first e equation

nnesha · Answer

both x should have same coefficient but opposite sign
try one more time please @charmancler