F is the number of faces in a prism. N is the number of sides of its end face.

Write down a formula connecting F and N.

F = N + 2

Step-by-step explanation:

2 bases (N) + N side parallelograms (or Rectangles)

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

my answer is$ 12

step-by-step explanation:

because 15 -2=12