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

User Muthukumar Selvaraj
by
7.8k points

2 Answers

3 votes
Just add them as if it were normal then put the s behind it
User Bojtib
by
7.5k points
3 votes
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
User Goran
by
7.3k points
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