Answer: Our required equation will be 
Step-by-step explanation:
Since we have given that
Base salary of Karen = $2000
Rate of commission on all of her sales = 20%
We need to write a equation:
Let the total salary of her be 's'
Let the number of dollars of merchandise sold be 'd'
According to question, it becomes

Hence, our required equation will be 
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following :
Total Amount made = $250
Amount charged = $70 per car
Tips earned = $50
Equation 1 to represent the above
(Amount charged per car × number of cars) + tips earned = total amount made
Let number of cars = c
Hence,
$70c + $50 = $250
Part B:
Total Amount made = $250
Amount charged = $75 per car
Tips earned = $35
Cost of supplies per car washed = $5
Equation 2:
(Amount charged per car × number of cars) + tips earned - (cost of supplies × number of cars) = total amount made
$75c + $35 - $5c = $250
$70c + $35 = $250
C) Equation 1 does not include the cost incurred in getting the car washed while equation 2 takes into account the cost incurred in washing a car which is then subtracted from the amount charged per car. Also the tips earned in equation 1 is $50 while equation has a tips fee of $35
Easy.
2x + 3x
2x + 3x
2x ( 1 + 3x / 2x )
2x ( 1 + 1.5 )
2x ( 3 )
6x
or
2x ( 3 )
or
3x ( 2 )
That's it.
Hope helps ...........
(2x-2/2) = (15-6x)
2x-1 = 15 -6x
2x+6x = 15 +1
8x = 16
8x/8 = 16 /8
x = 2