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Solve for x:

5x - 3 - x = 21
*
1 point
x = 6
x = -6
x = 4
x = -4
Solve the equation
7x - 3 - 4x = 9
*
1 point
x = 2
x = 4
x = 3
x = 12/11
What value of x makes the statement true?
6x - 8 = 2x +4
*
1 point
x = 3
x = 1/2
x = -3
x = -1/2
Solve for x:
5(-2x +4) = 40
*
1 point
x = 2
x = -2
x = -6
x = 6
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1 answer

Let's solve each equation step by step.

  1. Solve for x in:
    \( 5x - 3 - x = 21 \)
    Combine like terms:
    \( 4x - 3 = 21 \)
    Add 3 to both sides:
    \( 4x = 24 \)
    Divide by 4:
    \( x = 6 \)

    Answer: \( x = 6 \)

  2. Solve the equation:
    \( 7x - 3 - 4x = 9 \)
    Combine like terms:
    \( 3x - 3 = 9 \)
    Add 3 to both sides:
    \( 3x = 12 \)
    Divide by 3:
    \( x = 4 \)

    Answer: \( x = 4 \)

  3. What value of x makes the statement true?
    \( 6x - 8 = 2x + 4 \)
    Move 2x to the left:
    \( 6x - 2x - 8 = 4 \)
    Combine like terms:
    \( 4x - 8 = 4 \)
    Add 8 to both sides:
    \( 4x = 12 \)
    Divide by 4:
    \( x = 3 \)

    Answer: \( x = 3 \)

  4. Solve for x:
    \( 5(-2x + 4) = 40 \)
    Distribute 5:
    \( -10x + 20 = 40 \)
    Subtract 20 from both sides:
    \( -10x = 20 \)
    Divide by -10:
    \( x = -2 \)

    Answer: \( x = -2 \)

To summarize the answers:

  1. \( x = 6 \)
  2. \( x = 4 \)
  3. \( x = 3 \)
  4. \( x = -2 \)