The steps below show the incomplete solution to find the value of x for the equation 6x − 2x − 5 = −6 + 21: step 1: 6x − 2x − 5 = −6 + 21 step 2: 6x − 2x − 5 = 15 step 3: 4x − 5 = 15 which of these is most likely the next step?

What is the missing step in this proof ?

Can someone me out here number 4 plz

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.