Verified Answer :

  • 7 = 2x + 15
    7 - 15 = 2x
    -8 = 2x
    -8/2 = x
    -4 = x

    Measure of angle: -4

    *8 = 3x
    8/3 = x

    Measure of angle:  8/3

    I hope it helped. :)