Someone helppp pleasee

He first made the mistake when multiplying 3(5-4x)

He accidentally put 15+12 x

It should be 15-12x

The answer would then come out to be x=2

-5= 2x+3(5-4x)

-5= 2x+15-12x

-5= -10x+15                     Can i get brainliest please?

-20= -10x

2= x

yes. we do proportions in probabilities.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98