Which of the following equations can be formed using the expression x – InterviewSolution

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1.

Which of the following equations can be formed using the expression x = 5: (a) 2x + 3 = 13 (b) 3x + 2 = 13 (c) x – 5 = 1 (d) 4x – 9 = 21

Answer»

Correct answer is (a).

x = 5 on multiplying both sides by 2 gives 2x = 10 which on adding 3 both sides gives 2x + 3 =13

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