#### Question

Check whether the value given in the brackets is a solution to the given equation or not:

7n + 5 = 19 (n = − 2)

#### Solution

7n + 5 = 19 (n = −2)

Putting n = −2 in L.H.S.,

7n + 5 = 7 × (−2) + 5 = −14 + 5 = −9 ≠ 19

As L.H.S. ≠ R.H.S.,

Therefore, n = −2 is not a solution of the given equation, 7n + 5 = 19.

Is there an error in this question or solution?

Solution Check Whether the Value Given in the Brackets is a Solution to the Given Equation Or Not: 7n + 5 = 19 (N = − 2) Concept: Concep of Equation.