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Linear Equations in One Variable

SAT Math· difficulty 3/5

What is the solution to x3−x5=4\frac{x}{3} - \frac{x}{5} = 4?

  • A

    15

  • B

    20

  • C

    30

    check_circle
  • D

    60

Explanation

Multiply by 15: 5x−3x=605x - 3x = 60, so 2x=602x = 60 and x=30x = 30.

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