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Answer:
3.5
Explanation:
3x -(y / 2+ 5) x = 3.5 and y = 4
= 3(3.5) -(4/2 + 5)
= 3(3.5) -(2 + 5)
= 10.5 -(2 + 5)
= 10.5 -(7)
= 10.5 - 7
= 3.5
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