The expression 12 + x + 4 represents the perimeter of a triangle simplify the expression

x+16

Step-by-step explanation:

your simplifying so you only combine like terms.

12 and 4 dont have any variables following them so you add the two.

12+4=16

there is only 1 x in the expression so just add it on.

16+x

there are no more like terms so you leave it as it is.

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.