Question

Which expressions are equivalent to 6 + 12x

A 3(2+4x)
B. 3(2+6x)+2x
C. 5(1+2x)+1+2x
D7(1+2x)-2x-1
E 7 (1+2x)+2x-1

Answer 1

A,C and D

Explanation:

A: 3x2=6

3x4X=12X

6+12X

C: 5x1=5

5x2X=10X

5+10X+1+2X

6+12X

D: 7x1=7

7x2X=14X

7+14X-2X-1

6+14X-2X

6+12X