Answer:
[tex]\$196[/tex]
Step-by-step explanation:
Let
x------> David's left money
we know that
The equation that represent this situation is equal to
[tex]x=\$1,000-\$479-(\$479-\$154)[/tex]
Solve
[tex]x=\$1,000-\$479-(\$325)[/tex]
the cost of the stereo is equal to [tex]\$325[/tex]
[tex]x=\$1,000-\$804[/tex]
[tex]x=\$196[/tex]
