Answer:
(60 - 1597 x)/5
Explanation:
Simplify the following: 
(3 x)/5 - 320 x - 7 + 19 
 
Hint: | Put the fractions in (3 x)/5 - 320 x - 7 + 19 over a common denominator. 
Put each term in (3 x)/5 - 320 x - 7 + 19 over the common denominator 5: (3 x)/5 - 320 x - 7 + 19 = (3 x)/5 - (1600 x)/5 - 35/5 + 95/5: 
(3 x)/5 - (1600 x)/5 - 35/5 + 95/5 
 
Hint: | Combine (3 x)/5 - (1600 x)/5 - 35/5 + 95/5 into a single fraction. 
(3 x)/5 - (1600 x)/5 - 35/5 + 95/5 = (3 x - 1600 x - 35 + 95)/5: 
(3 x - 1600 x - 35 + 95)/5 
 
Hint: | Group like terms in 3 x - 1600 x - 35 + 95. 
Grouping like terms, 3 x - 1600 x - 35 + 95 = (95 - 35) + (3 x - 1600 x): 
((95 - 35) + (3 x - 1600 x))/5 
 
Hint: | Combine like terms in 3 x - 1600 x. 
3 x - 1600 x = -1597 x: 
(-1597 x + (95 - 35))/5 
 
Hint: | Evaluate 95 - 35. 
95 - 35 = 60: 
Answer: (60 - 1597 x)/5