Three marks exercise problems IV — task. Mathematics State Board, Class 7.

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1. Find the expression to be added with

$5a - 3b + 2c$ to get

$a - 4b - 2c$ ?

Answer:

Solution

$=$

2. What should be subtracted from

$2m + 8n + 10$ to get

$-3m + 7n + 16$ ?

Answer:

Solution

$=$

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