Question

Simplify (3x $-$ 11y)$-$ (17x + 13y) and choose the right answer.

(i) 7x $-$12y (ii) $-$ 14x $-$54y (iii) $-$3 (5x + 4y ) (iv) $-$2 (7x + 12y )

Answer 1

(3x $-$ 11y) $-$ (17x + 13y)
= 3x $-$ 11y $-$ 17x $-$ 13y
= (3x $-$ 17x) + ($-$11y $-$ 13y)
= $-$ 14x + ($-$24y)
= $-$14x $-$ 24y
= $-$2(x + 12y)
So, the correct option is (iv).