1025-(598+z)=251 (n-286)-934=0

Question

1025-(598+z)=251
(n-286)-934=0

Answer 1

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Answer 2

1025-(598+z)=251
(598+z)=1025-251
598+z=774
z=774-598
z=176

(n-286)-934=0
n-286=0+934
n-286=934
n=934+286
n=1220