If (7a) (7b)= (7c) (7d), what is “d” in terms of a, b and c:

 If (7a) (7b)= (7c) (7d), what is “d” in terms of a, b and c:

  • (A) c/ab
  • (B) c = a – b
  • (C) c – ab
  • (D)  a + b – c
  • Solution: If a, b, c, and d are exponents, then the equation
  • is based on the exponent rule:
  • 7a+b = 7c+d
  • With the same base, the two exponents are equal:
  • a + b = c + d
  • Solve the equation for d:
  • d = a + b - c
  • Correct answer: (D) a + b - c
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Related MCQs:

 ‘NATO’ is an abbreviation of:

  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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