Question

Is this true or false?
For x-5<12 x=20 is a member of the solution set.

Answer 1

x-5<12 is an inequality, which basically translates to:
x minus 5 is SMALLER than 12.
To check this, substitute 20 (as this is the value for x) into the equation:
20-5<12
15<12
This is NOT true, as 15 is not smaller than 12.

Answer 2

thanks!