Question

(2x - 4)+ ( x + 9)
A. 3x+5
B.x+5
C.3x-13
D.x+9

Answer 1

Answer: option A, 3x + 5

first, i rewrote it and removed the parentheses.

2x - 4 + x + 9

then, i collected the like terms.

3x + 5