Question

if xbar-z=3 and xbar+z=45 find the value of m
​

Answer 1

Answer:

X-z=3.......... 1

x+z=45........ 2

-------------

2x=48

so, x=24

and put the value of x in eq! 1

24-z=3

z= 21 answer

Answer 2

$\bf\large\underline\blue{Answer:-}$

X-z=3.......... 1

x+z=45........ 2

-------------

2x=48

so, x=24

and put the value of x in eq! 1

24-z=3

z= 21 answer