Simplify the following expressi

a) 3x + 2 - 7y + x + 2y -

b) 2a + b + a + 3b

c) 4m + 7n + 5m - 5n

d) 2x2y + 5xy2 + 3x2y - 2

e) x2 + x + 2x2

Solution

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