The number of golf balls did Ricardo have to begin with is 16 and the first step is to represent the number of golf balls with x.
Represent the number of golf balls with x.
So, we have the following sequence:
Lost = 6
Bought = 12
Lost = 4
Total = 18
This gives
x - 6 + 12 - 4 = 18
Evaluate the like terms
x + 2 = 18
Subtract 2 from both sides
x = 16
Hence, the number of golf balls did Ricardo have to begin with is 16
In (a), we have the first step to be
Represent the number of golf balls with x.
Hence, the first step is to represent the number of golf balls with x.
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