Algebrahard · Past Paper
Solve for x: x/a + y/b = 2 and ax - by = a^2 - b^2.
Ax=a, y=b
Bx=b, y=a
Cx=1, y=1
Dx=a, y=-b
✓ Correct Answer: A — x=a, y=b
Substitute x=a, y=b: a/a + b/b = 1+1=2. a(a)-b(b) = a^2-b^2. Both satisfied.
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✓ Correct Answer: A — x=a, y=b
Substitute x=a, y=b: a/a + b/b = 1+1=2. a(a)-b(b) = a^2-b^2. Both satisfied.
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