The electronics store sold 4 laptop computers in one day. the total cost of the laptops was $3,600. if each laptop cost the same amount, how much did each laptop cost?

$900

Step-by-step explanation:

Here we need to find the "unit cost" of the laptops.  In this case, divide the $3,600 total by (4 laptops), obtaining:

 $3,600

= $900 per laptop

4 laptops

0.6

39mph

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x