Sarthaks Test
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Choose the correct one. 

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

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Correct answer is (a) 2x + 3 = 13.

[ Hint: 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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