1.

Check whether the value given in the brackets is a solution to the given equation or not : 2n + 5 = 19 (n = 7)

Answer»

Given 2n + 5 = 19 

Substitute n = 7 in the given equation 

2(7) + 5 = 19

⇒ 14 + 5 = 19 

⇒ 19 = 19 

∴ LHS = RHS 

So, n = 7 is the solution of the given equation.



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