Using the segment addition postulate, find the value of x. AB = 3x + 8
BC = 4x + 6
AC = 28
1) 2
2) 7
3) 28
4) 14

its 2

Step-by-step explanation:

According to segment addition prostulate,

AB+BC=AC

or,3x+8+4x+6=28

or, 7x+14=28

or 7x=28-14

or, 7x=14

or,x=14÷7

or,x=2

Therefore, the value of x is 2.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.