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Answer:
Step-by-step explanation:
X as other number
X+-4=-11/5
X=1/4-11/5
X=(4×5)-(11×1)/1×5
X=20-11/5
X=9/5
Recheck
9/5+-4
(4+5)-(9×1)/5×1
=20-9/5
=11/5
So answer is 11/5
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