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Question
What should be subtracted from 2m + 8n + 10 to get – 3m + 7n + 16?
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Solution
To get the expression we have to subtract – 3m + 7n + 16 from 2m + 8n + 10.
(2m + 8n + 10) – (– 3m + 7n + 16) = 2m + 8n + 10 + 3m – 7n – 16
= (2 + 3)m + (8 – 7)n + (10 – 16)
= 5m + n – 6
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