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If the point (a, 7) lies on the graph of the equation 5x - y = 8, then a=

If the point (a, 7) lies on the graph of the equation 5x - y = 8, then a=
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4 votes
If the point (a, 7) lies on the graph of the equation 5x - y = 8, then a=

User Kgibm
by
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2 Answers

6 votes
(x,y) =(a,7)
x= a
y= 7

5x-y=8
By substituting the value of y
5x-7 =8
5x=15
x= 3


As x = a=3
So, a =3
User Martijn Courteaux
by
7.7k points
1 vote
5x - y = 8

5x - 7 = 8
5x = 8+7
5x = 15
x = 3

a=x=3

Answer: a=3
User Waddah
by
8.7k points
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