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

Question

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

in progress 0
Sarah 2 weeks 2021-09-09T01:19:51+00:00 2 Answers 0

Answers ( )

    0
    2021-09-09T01:20:51+00:00

    Answer:

    a = 3

    Step-by-step explanation:

    Fill in the given values:

    a*5-2*7 = 1 =>

    5a = 1 + 14

    a = 15/5 = 3

    0
    2021-09-09T01:21:38+00:00

    Answer:

    a=3

    Step-by-step explanation:

    First, you replace the variables x and y in the equation with their respectful values, making the equation 5a-2(7)=1.

    Then, you simplify the -2(7), which equals 14, making the equation 5a-14=1.

    Then, you add 14 from both sides, making the equation 5a=15.

    Finally, you divide both sides by 5, making the answer a=3.

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )