5x-102=13 ( can i be taught how to do it bc there is a lot more questions like this)

5*-102=13

step1 pulling out like term:1.1

pull out like factors:5x-115=5(x-23)

equation at the end of step 1 : step 2:

equation which are never true: 2.1 solve:5=0.

solve:x-23=0 solving a single variable equation

:2.2 solve :x-23=0 add 23 to both sides of the equation:x=23

A.  0.0004 
b.  0.61

in a, you can get the answer by multiplying 0.02, which is the probability that the bus will arrive early, and 2, which is the number of days. so 2(0.02) is 0.0004, which is the probability that the bus will arrive early for the next two days.

in b, you can get the answer by subtracting 0.19, which is the probability that the bus will be late, and 0.02, which is the probability that the bus will be early, from 1 which is the sum of all probabilities. so 1-(0.02+0.19) is 0.61, which is the probability that the bus will arrive on time.