Answer:
n=-1
Step-by-step explanation:
7n + 28 = 21
subtract 28 on both sides
7n= -7
divide by seven on both sides
n= -1
Aanswer:272
Step-by-step explanation:
144÷9=16$ per hr
16$×17hr=272
Answer:
1190
Step-by-step explanation:
You could write something along the lines of a person having x amount of an item. They then double that amount. But then, they give away 125 of the item to a friend
5(2x+4)=40 [distribute 5]
10x+20=40
10x=40-20 [move 20 to RHS and make it a negative]
10x=20 [divide both sides by 10]
x=2