
Jocelyn T. answered 03/13/19
Tutor
New to Wyzant
Experienced Elementary/Middle School Tutor
Let x = the number you're trying to find.
"Twice a number" = 2x
"The sum of twice a number and 19" = 2x + 19
"The sum of twice a number and 19 is -23" --> 2x + 19 = -23