Answer:
A) you do 2 times x and 2 times 3
2x + 6
B) you do 5 times 2x and 5 times 4
10x - 20
C) you do 4 times 2x and 4 times 1
8x + 4
D) you do 6 times x and 6 times 4y
6x - 24y
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