The problem
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how did we get 88?
Answer provided by our tutors
We added 60 to both sides.
On the left side it cancelled with the existing -60
On the right side it was added to 28 , making it equal to 88
how did we get 88?
We added 60 to both sides.
On the left side it cancelled with the existing -60
On the right side it was added to 28 , making it equal to 88
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