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Linear Equations in One Variable

SAT Math· difficulty 2/5

If 4x−5=2x+94x - 5 = 2x + 9, what is the value of xx?

  • A

    14

  • B

    7

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  • C

    72\frac{7}{2}

  • D

    2

Explanation

Subtract 2x2x: 2x−5=92x - 5 = 9. Add 5: 2x=142x = 14. Divide by 2: x=7x = 7.

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