Question

Which expressions are equivalent to 3x+6? Select all that apply. 2x+2+x+4, x+6+x+x, 3+6x, 10+9x-4-6x, 9+10x-6-4x

Answer 1

x+6+x+x

Explanation:

A variable by itself means 1 so 1x + 1x + 1x = 3x and 6 is just 6 so its 3x + 6

Answer 2

x+6+x+x

Explanation:

x+6+x+x =3x+6