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26 February, 19:10

7. Solve the equation.

x + 3 = 3x - 7

A-10

B - 12

05

OD-2

+5
Answers (2)
  1. 26 February, 20:50
    0
    C. x = 5

    Step-by-step explanation:

    x + 3 = 3x - 7

    Add - 3x and - 3 on both sides.

    x - 3x = - 7 - 3

    Add or subtract like terms.

    -2x = - 10

    Multiply - 1 on both sides.

    2x = 10

    Divide 2 into both sides.

    2x/2 = 10/2

    x = 5
  2. 26 February, 21:25
    0
    The correct answer is C : 5

    Step by step:

    1. Subtract - 3 on both sides and get x = 3x - 10

    2. Subtract 3x on both sides and get - 2x = - 10

    3. Divide - 2 on both sides and get x=5 as your answer!
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