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Algebra : Adding & Subtracting

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Algebra: Adding and Subtracting
Highlight the groups of the same things (called ‘like terms’)
For example: 3m + 6 +2m+ 7 = ?
Answer: 3m + 2m + 6 + 7 = 5m + 13
It is important to include the + or – with the number that follows it in each term.
For example, 3m – 6 – 5m + 7 = ?
Answer: 3m – 5m – 6 + 7 = -2m + 1

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