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  1. What should be added to 8 (3x – 4y) to obtain (18x – 18y) ?
    1. 6x – 14y
    2. 14y + 6x
    3. 14y – 6x
    4. 6xy
Correct Option: C

Required answer
= (18x – 18y) – 8 (3x – 4y)
= 18x – 18y – 24x + 32y
= 14y – 6x


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