aprinacheba aprinacheba

13-03-2017
Mathematics

contestada

Solve for z: 23 – 3z = –4
a. z = 9
b.
c. z = –24
d. z = 81

Respuesta :

13-03-2017

the correct answer is A. z=9

Answer Link

brookskinner brookskinner

13-03-2017

23 - 3z = -4
+4 +4
-----------------
27 - 3z = 0
+3z +3z
------------------
27= 3z
/ 3 /3
-----------
z = 9

Answer Link

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