Solution
Expressions : 7x + 13 and 13x - 7
=> $$7x + 13 = 13x - 7$$
=> $$13x - 7x = 13 + 7$$
=> $$6x = 20$$
=> $$x = \frac{20}{6} = \frac{10}{3}$$
=> Ans - (D)
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