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31 January, 19:34

8) (3a + 3) (3a - 2)

+6)

+3
Answers (1)
  1. 31 January, 19:38
    0
    A = 12 + - 1a

    Step-by-step explanation:

    Simplifying

    A + - 1 (8 + - 3a) = 2 (a + 3) + - 2

    A + (8 * - 1 + - 3a * - 1) = 2 (a + 3) + - 2

    A + (-8 + 3a) = 2 (a + 3) + - 2

    Reorder the terms:

    -8 + A + 3a = 2 (a + 3) + - 2

    Reorder the terms:

    -8 + A + 3a = 2 (3 + a) + - 2

    -8 + A + 3a = (3 * 2 + a * 2) + - 2

    -8 + A + 3a = (6 + 2a) + - 2

    Reorder the terms:

    -8 + A + 3a = 6 + - 2 + 2a

    Combine like terms: 6 + - 2 = 4

    -8 + A + 3a = 4 + 2a

    Solving

    -8 + A + 3a = 4 + 2a

    Solving for variable 'A'.

    Move all terms containing A to the left, all other terms to the right.

    Add '8' to each side of the equation.

    -8 + A + 8 + 3a = 4 + 8 + 2a

    Reorder the terms:

    -8 + 8 + A + 3a = 4 + 8 + 2a

    Combine like terms: - 8 + 8 = 0

    0 + A + 3a = 4 + 8 + 2a

    A + 3a = 4 + 8 + 2a

    Combine like terms: 4 + 8 = 12

    A + 3a = 12 + 2a

    Add '-3a' to each side of the equation.

    A + 3a + - 3a = 12 + 2a + - 3a

    Combine like terms: 3a + - 3a = 0

    A + 0 = 12 + 2a + - 3a

    A = 12 + 2a + - 3a

    Combine like terms: 2a + - 3a = - 1a

    A = 12 + - 1a

    Simplifying

    A = 12 + - 1a
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