michellesanchez2091 michellesanchez2091

22-11-2019
Mathematics

contestada

7z-18= -2z +19 solve for z. Show work .

Respuesta :

annadingle21 annadingle21

22-11-2019

Answer:

z=37/9

Step-by-step explanation:

move the variable to the left side and change its sign: 7z+2z-18=19

collect like terms, so add the 7 and 2: 9z=19+28

add the 28 and 19: 9z=37

divide both signs by 9: 37/9

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