Hai! You're gonna need 15 shelves for all those toys. X)
First move the 2n over to the other side by subtracting it
so
4n=-8
then divide 4n by 4 and do the same to the other side
so
n= -8/4
n= -2
Step-by-step explanation:
<u>John</u>
1hour=x
6x=150
X=150÷6=25
John earns 25 dollars per hour
<u>Peter</u>
<u>1hour=x </u>
<u>8</u><u>x=</u><u>160</u>
<u>X=</u><u>160</u><u>÷</u><u>8</u><u>=</u><u>20</u><u> </u>
- Peter earns less than <u>John</u><u> </u>
The simplest way to do this is to set up equivalent fractions. So, you'd do:

=

and then solve for x.
x=52