Solve for x: 3x + 7 = 22
A3
B4
C5
D6
Explanation
Subtract 7 from both sides: 3x = 22 – 7 => 3x = 15. Divide by 3: x = 15 / 3 = 5.
Exam Relevance
- Topic: Basic Algebra & Equations
- Subtopic: Linear Equations
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