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