Answer:
17 - y +x
Explanation:
sum 4 and 7 and 6 =
17+y -2 y tx
17-y + x
17 - y + x
4 + y + 7 - 2y + 6 + x
=> (4 + 7 + 6) + (y - 2y) + x [Rearranging the terms]
=> 17 - y + x
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