Question

consider the following equation.
18 - 3n = 1
substitute 5 for n in the equation.
18 - 3( 5 ) = 1
without rewriting the equation, complete the following statement.
when n = 5, the value of the left side of the equation is 15. when n = 5, the value of the right side of the equation is 15. these values are equal.
is 5 a solution of the equation?
○ yes
● no

Explanation:

Step1: Calculate left side at n=5

$18 - 3(5) = 18 - 15 = 3$

Step2: Identify right side value

The right side of the equation is a constant: $1$

Step3: Compare the two values

$3
eq 1$, so the values are not equal.

Answer:

When $n = 5$, the value of the left side of the equation is $3$. When $n = 5$, the value of the right side of the equation is $1$. These values are not equal.
Is 5 a solution of the equation? No