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Hey guys I need help with this question. Solve the system by substitution: x=-1 and 4x+2y=16

Hey guys I need help with this question. Solve the system by substitution: x=-1 and 4x+2y=16
82.9k views
13 votes
Hey guys I need help with this question. Solve the system by substitution: x=-1 and 4x+2y=16

User Amalan Dhananjayan
by
8.4k points

2 Answers

6 votes
4x + 2y = 16
4(-1) + 2y = 16
-4 + 2y = 16
+4 +4
2y = 20
/2 /2
y = 10
User WarSame
by
8.1k points
4 votes
4(-1) + 2y = 16
-4 + 2y = 16
2y = 20
y = 10

I think this is how u do it..
User Nima Rostami
by
8.1k points
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