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Find teh value of teh coefficient a in the equation ax +2y =8 if a solution to the equation is the pair x=2 and y= 1
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44 votes
44 votes
Find teh value of teh coefficient a in the equation ax +2y =8 if a solution to the equation is the pair x=2 and y= 1

User Sungjoon
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2 Answers

14 votes
14 votes
a(2) + 2(1) = 8
2a + 2 = 8
2a = 8-2
2a = 6
a = 6/2
a = 3
User Jeremy Massel
by
3.2k points
14 votes
14 votes

Answer:

a(2)+2(1)=8

2a+2=8

2a=8-2

2a=6

a=3

User Gur Dotan
by
3.1k points
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