# math

posted by Wendy

Silas took 15 bags of glass to the recycling center on Monday. He took 6 bags of plastic to the recycling center on Tuesday. Which equation could be used to find x, the total number of bags of glass and plastic Silas took to the recycling center?
A. x - 15 = 6
B. x + 15 = 6
C. 15 - x = 6
D. x - 6 = -15

1. Ms. Sue

The simple way of doing this problem is to add 15 + 6.

2. Wendy

I don't think any of the choices do that. is the answer A?

3. Ms. Sue

x - 15 = 6

Add 15 to both sides of the equation.

x = 21

4. Wendy

thank you so much!

5. Ms. Sue

You are very welcome.

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