Solve the equation
15x-45=3x

x=3.75

Step-by-step explanation:

15x - 45= 3x

Subtract 15x from both sides:

-45 = -12x

Divide both sides by -12, the -12's cancel and you get:

-45/-12 = 3.75

x= 3.75

I hope this helps!! blessings, xx,nm! :)

12

Step-by-step explanation:

There are 18 pants and the pants are either blue or black. If we represent blue pants as B and black pants as b, this means that:

B + b = 18 (1)

We are told that there are 6 more blue pants than black pants.  Hence:

B = 6 + b

=> b = B - 6 (2)

Putting (2) in (1), we have:

B + (B - 6) = 18

=> B + B - 6 = 18

2B - 6 = 18

2B = 18 + 6 = 24

=> B = 24/2 = 12

This means that there are 12 blue pants.