What is the value of x in the equation 7x + 2y = 48 when y = 3?

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To find the value of x in the equation 7x + 2y = 48 when y = 3, we can follow these steps:

  1. Substitute the value of y: Replace y in the equation with 3:
  2. 7x + 2(3) = 48
  3. Calculate: Next, simplify the equation:
  4. 7x + 6 = 48
  5. Isolate 7x: Subtract 6 from both sides:
  6. 7x = 48 - 6
  7. 7x = 42
  8. Solve for x: Divide both sides by 7:
  9. x = 42 / 7
  10. x = 6

Thus, the value of x in the equation 7x + 2y = 48 when y = 3 is 6.

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