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Solve 4x + 9 = 25

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Answer
4\boxed{4}

Substituting x=4x = 4 back into the original equation gives 4(4)+9=16+9=254(4) + 9 = 16 + 9 = 25, which is correct.

Problem: Solve for xx in the equation 4x+9=254x + 9 = 25.

Steps

  1. Subtract 9 from both sides
    4x=25−94x = 25 - 9
  2. Simplify the right side
    4x=164x = 16
  3. Divide both sides by 4
    x=164x = \frac{16}{4}
  4. Simplify the fraction
    x=4x = 4

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