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Andre45 [30]
4 years ago
5

9s - 5s + 2s - s Please explain how you did this question.

Mathematics
2 answers:
Maslowich4 years ago
4 0
Just add them as if it were normal then put the s behind it
masha68 [24]4 years ago
4 0
Just take out the s' to make it easier
So 9-5+2-1
9-5= 4
4+2=6
And then +1 is 7
And all you have to do is put the s back in so the answer is:
7s
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