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BritishAce
BritishAce BritishAce
  • 31-01-2017
  • Mathematics
Answered

Substitution Method. Help please? #5 please!

Substitution Method. Help please? 5 please! class=

Verified Answer :

apetrostone
apetrostone apetrostone
  • 31-01-2017

switch the second equation to equal y so...
y=-2x-3
then plug in for y in the first equation
2x+4(-2x-3)=6
2x-8x-12=6
-6x=18
x=-3
now plug in for y
2(-3)+y=-3
-6+y=-3
y=3

answer (-3,3)

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