What is the value of a in the equation 3 a + b = 54, when b=9

Question

What is the value of a in the equation 3 a + b = 54, when b=9

in progress 0
Adalynn 1 week 2021-10-11T17:45:28+00:00 1 Answer 0

Answers ( )

    0
    2021-10-11T17:46:53+00:00

    To solve this plug in 9 for b and solve for a like so…

    3a + 9 = 54

    9 must be combined with 54. To do this you must subtract 9 from both sides. This will cancel out 9 from the left and bring it over to the right

    3a + (9 – 9) = 54 – 9

    3a + 0 = 45

    3a = 45

    Now we must isolate the a. To do this you have to divide 3 to both sides. This will make 3 on the left side 1 and bring 3 over to the other side

    3a/3 = 45/3

    1a = 15

    a = 15

    Hope this helped!

    ~Just a girl in love with Shawn Mendes

Leave an answer

Browse
Browse

27:3+15-4x7+3-1=? ( )