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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

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
asked 14.1k views
20 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

asked
User Pablo Rivas
by
8.2k points

2 Answers

7 votes
a(2) + 2(1) = 8
2a + 2 = 8
2a = 8-2
2a = 6
a = 6/2
a = 3
answered
User Theycallhimart
by
8.3k points
2 votes

Answer:

a(2)+2(1)=8

2a+2=8

2a=8-2

2a=6

a=3

answered
User Thagorn
by
8.7k points
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