1.

Simplify (3x – 11y) – (17x + 13y) and choose the right answer. (A) 7x – 12y (B) -14x – 54y (C) -3(5x + 4y) (D) -2(7x + 12y)

Answer»

Correct answer is

(D) -2(7x + 12y)

Hints:

(3x – 11y) – (17x + 13y) 

= 3x – 11y – 17x – 13y 

= – 14x – 24y 

= – 2 × 7x – 2 × 12y 

= – 2(7x + 12y)



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