Construct a table to check if the equation is true or false for each of the values from the replacement set.
{13}
Practice makes perfect
We want to verify if any values contained in the replacement set are solutions of this equation. We will replace the variable with each value from the set and check if the equation is true for any of them.
n
n+10=23
Simplify
True or False?
11
11+10? =23
21≠23
False
12
12+10? =23
22≠23
False
13
13+10? =23
23= 23
True
14
14+10? =23
24 ≠23
False
15
15+10? =23
25≠23
False
Since the equation is true when n=13, the solution set is {13}.
