Mathematics · Algebra
If the system of linear equations 2x + 3y = 7 and 2ax + (a + b)y = 28 has infinitely many solutions, then which of the following relations is correct?
- 1a = 2b
- 2b = 2a✓
- 3a + 2b = 0
- 42a + b = 0
Correct answer
b = 2a
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