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14 March, 19:22

Solve the equation.

у + 3 = - у + 9

Оy = 1

Оy = 3

O y=6

Оy = 9

+3
Answers (2)
  1. 14 March, 21:36
    0
    y = 3

    Step-by-step explanation:

    Solve for y:

    y + 3 = 9 - y

    Add y to both sides:

    y + y + 3 = (y - y) + 9

    y - y = 0:

    y + y + 3 = 9

    y + y = 2 y:

    2 y + 3 = 9

    Subtract 3 from both sides:

    2 y + (3 - 3) = 9 - 3

    3 - 3 = 0:

    2 y = 9 - 3

    9 - 3 = 6:

    2 y = 6

    Divide both sides of 2 y = 6 by 2:

    (2 y) / 2 = 6/2

    2/2 = 1:

    y = 6/2

    The gcd of 6 and 2 is 2, so 6/2 = (2*3) / (2*1) = 2/2*3 = 3:

    Answer: y = 3
  2. 14 March, 22:41
    0
    y=3

    Step-by-step explanation:

    y+3=-y+9

    (3) + 3 = - (3) + 9

    3+3=6

    -3+9=6

    6=6

    So the answer will be B or y=3
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