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3ab-1=2ab-3
Given the equation, what is the value of 
ab ?
Choose 1 answer:
(A) -4
(B) -3
(c) -2
(D) -1

3ab1=2ab3 3 a b-1=2 a b-3 \newlineGiven the equation, what is the value of ab a b ?\newlineChoose 11 answer:\newline(A) 4-4\newline(B) 3-3\newline(C) 2-2\newline(D) 1-1

Full solution

Q. 3ab1=2ab3 3 a b-1=2 a b-3 \newlineGiven the equation, what is the value of ab a b ?\newlineChoose 11 answer:\newline(A) 4-4\newline(B) 3-3\newline(C) 2-2\newline(D) 1-1
  1. Isolate variable term abab: Isolate the variable term abab on one side of the equation.3ab1=2ab33ab - 1 = 2ab - 33ab2ab=3+13ab - 2ab = -3 + 1
  2. Combine like terms: Combine the like terms on both sides of the equation.\newline(3ab2ab)=(3+1)(3ab - 2ab) = (-3 + 1)\newlineab=2ab = -2

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