AnswersVT-PSAT MathSolving Equations with Rational NumbersQuestion 7
7
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Solving Equations with Rational Numbers

Question 7 • VT-PSAT Math

Bobby claims that Peter started with 21 cards. Which statements are true about verifying Bobby’s claim? Check all that apply.

Answer
A
Substitute 21 for x in the original equation.
B
Substitute any number for x in the original equation.
C
Bobby’s claim that x = 21 is correct.
D
The result of verifying Bobby’s work is 9 = 9.
E
The result of verifying Bobby’s work is 21 = 21.
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