Question

If 2x + 1 =4 , find 12x

a) 12
b)10
c)16
d) 18

Please help show me how to solve this

Answer 1

D)18

Explanation:

2x+1=4

-1 -1

2x=3

Divide 3 by 2 So it is 3/2=x

Then multiply 12 by 3/2 which equals 18.