yaksh235 yaksh235

04-04-2019
Mathematics

contestada

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

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pr3tz81scut2 pr3tz81scut2

04-04-2019

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

Answer Link

kennethmcclure71 kennethmcclure71

05-04-2019

Answer:

A=3 5a-14=1

Step-by-step explanation:

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

Answer Link

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