I need the figure out the bottom question simple pre algebra problem thank you

X=9    <1=54 <2=54

Step-by-step explanation:

72-2x=63-x                      63-9=54

   +2x      +2x                   72-2(9)=54

72=63+x

-63 -63

9=x                              

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)