Question

# Question : 7 Which of the following equations has x = 2 as a solution? (a) x + 2 = 5 (b) x - 2 = 0 (c) 2x + 1 = 0 (d) x + 3 = 6

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Solution

## EquationSubstituting x = 2Equation satisfied(a)x+2=52+2=4No(b)x−2=02−2=0Yes(c)2x+1=0(2×2)+1=5No(d)x+3=6(2+3)=5No ∴The equation x - 2 = 0 has x = 2 as solution.

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