Which expressions represent the distance between the two points?
choose all answers that are correct.
the number line shows two points with coordinates negative 9 and positive 13.
a.
|–9 – 13|
b.
|13 – (–9)|
c.
|–13 + 9|
d.
13 – (–9)

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116