6. Simplify.
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(0)
-4
3
7
5
15
20
(ii) 3+ 5
11
24
12
18
7. Find the values of x - y and y - :
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Answer:
List the key terms of the chapter "Tracing changes through a thousand years"
(Chapter no. 1 NCERT class 7 ssc textbook) please please it is urgent
Step-by-step explanation:
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