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Solve using the substitution method: y = -2x - 7 y = 3x + 3​
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3 votes
Solve using the substitution method:

y = -2x - 7
y = 3x + 3​

User Obl Tobl
by
7.9k points

1 Answer

1 vote
Substitute
So, -2x-7 = 3x + 3
+2x. +2x
-7= 5x +3
-5x. -5x

-5x-7= 3
+7. +7
-5x= 10

Divide -5 on both sides and you get x= -2

Then substitute -2 in the first equation

-2(-2)-7
4-7
Y= -3
User Ethan Barron
by
8.9k points
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