3 years ago

The pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.

Mathematics

2 answers:

Wewaii [24]3 years ago

5 0

Answer:

a=3

Step-by-step explanation:

This should be very simple, just substitute xy and y for 5 and 7 respectively, so 5a-2*7=1, or 5a-14=1, or 5a=15, if we divide both sides by 5, we get a=3

yanalaym [24]3 years ago

4 0

Answer:

A=3 5a-14=1

Step-by-step explanation:

Add 14 to both sides then divide 5 and 15 to get 3

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