Question

Doris made 80 cookies this week. She baked 4 less than three times the total she made last week. Which equation, when solved for x, gives the number of cookies she baked last week?

Answer 1

Answer:

The equation is  $3x-4=80$

The value of x is 28 cookies

Step-by-step explanation:

Let

x ---->  the number of cookies she baked last week

we know that

The number of cookies she baked last week multiplied by 3 minus 4 must be equal to 80 cookies

so

The linear equation that represent this situation is

$3x-4=80$

solve for x

$3x=80+4\\3x=84\\x=28\ cookies$