Ineed on these plssquestion 1  the work of a student to solve the equation 2(5y − 2) = 12 + 6y is shown below: step 1: 2(5y − 2) = 12 + 6y step 2: 7y − 4 = 12 + 6y step 3: y − 4 = 10 step 4: y = 14 step 5: y = 7 in which step did the student first make an error and what is the correct step? question 2a student is trying to solve the system of two equations given below: equation p: y + z = 6equation q: 8y + 7z = 1which of these is a possible step used in eliminating the y-term?

Question 1

Distributing 2 on 5y -2, we will get

But student get

So the student make an error in step 2 .

Second question

To get rid of y, we have to multiply first equation by -8 and add the resultant equation with equation Q .

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

unless if u could do my questions, if not i wouldn't want to