Question

Which expression below is equivalent to the one below? 3 (2x+5)-(-5x+4)

A)6x+1

B)11x+1

C)x+9

D)11x+9

Answer 1

3(2x+5)-(-5×+4)

3(2×+5) - (-5×+4)

3× (6×) - (1)

6×+1

Answer 2

D) 11x + 9

Explanation:

3(2x + 5) - (-5x + 4) = (6x + 15) - (-5x + 4) = 6x + 15 + 5x - 4

add like terms:

(6x + 5x) + (15 - 4) = 11x + 9