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Algebra - Linear Equations
2:00
If 3x + 7 = 22, and 2y = x - 3, what is the value of y?
3x + 7 = 22
2y = x - 3
y = ?

Step-by-Step Solution:

  1. Solve for x: 3x + 7 = 22
  2. 3x = 22 - 7 = 15
  3. x = 15 ÷ 3 = 5
  4. Substitute x into second equation: 2y = 5 - 3
  5. 2y = 2
  6. y = 1

Correct Answer: B) y = 3

💡 Tip: Always solve for one variable first, then substitute!

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Algebra
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Geometry
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Statistics
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Word Problems
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