Question

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

Answer 1

z=37/9

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