longlongback longlongback

15-01-2021
Mathematics

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BenDaChickenMaster BenDaChickenMaster

15-01-2021

Answer:

Z=25

Step-by-step explanation:

Angle C and D are Supplementary so

3z-15+7z-55=180

10z-70=180

10z=250

z=25

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