42 cm because if you divide 210 and 1260 it will make 6 so u just multiply it by 7 and u get 42
Answer:
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No If it was 4 to 3 then yes but 4 can't be multiplied by anything to equal 9
First use distributive property:
4(5x - 6) - 4(2x + 1)
20x - 24 - 8x - 4
Then add like terms:
12x - 28