Solve the equation

-3x - 5 =16

What does x =??

-7

Step-by-step explanation:

Move all terms that don't contain

x

x

to the right side and solve

Marna has to answer more than 16 answers to win the game.

Step-by-step explanation:

Le 'x' be the number of correct answers.

If Marna is getting -5 points each time she guess the correct answer.

Then the total points she get after x correct answers= -5x

If to win the game, Marna  must have a score of less than -80 points.

⇒

If we multiply (-1) on both sides the inequality will reverse

Divide both sides by 5, we get

Marna has to answer more than 16 answers to win the game.