If 1/2 is subracted from a number and diff-
rence is multiple by 4 the result is 5. Find
the number.
Answers
Answered by
1
Answer:
7/4
Step-by-step explanation:
(x−
2
1
)4=5
⇒4x−
2
4
=5
⇒
2
2×4x−4
=5
⇒8x−4=10
⇒8x=10+4
⇒8x=14
⇒x=
8
14
=
4
7
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