3. sarah gave her customers a 15% discount
for their meal on every first thursday of
the month. if karen paid $28.90 for her
meal with the discount how much was
her meal without the discount?

$34

Step-by-step explanation:

Let x be the amount of meal without discount

Given.

Sarah gave her customers a 15% discount, that is equal to

And discounted amount of meal is given, that is $28.90

The equation of discounted amount of meal is

The amount of meal without discount is $34

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x