Frank has x baseball cards in his collection. He gets 45 more for his birthday. Write an expression to show the number of baseball cards Frank has altogether

X + 45

45(x + 2)

45x

45 - x

X + 45

Step-by-step explanation:

Frank has x baseball cards in his collection already .

He got 45 more for his birthday.

The expression becomes the ones he had before the birthday plus the ones he got on his birthday.

He had x before and got 45 on his birthday

So x + 45 is the expression that shows the number of baseball cards Frank has all together.

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step-by-step explanation: