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Substitution Method. Help please? #5 please!
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Substitution Method. Help please? #5 please!

Substitution Method. Help please? #5 please!-example-1
User Nikhil Goyal
by
8.2k points

1 Answer

3 votes
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)
User Rcollyer
by
8.0k points
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