10z-5+3z=8-z

10z - 5 + 3z = 8 - z

13z - 5 = 8 - z (Combine like terms on each side)

14z - 5 = 8 (Add z to both sides)

14z = 13 (Add 5 to both sides)

z = 13/14 (Divide both sides by 14)

ANSWER: z = 13/14 or z = 0.9286 (equivalent)

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