Question

simplify (5-¹+9-¹)-¹÷(5-¹-9-¹)-¹​

Answer 1

Answer:

Given, 53x−1÷25=125

Since, 25=5×5=52

And 125=5×5×5=53

Therefore given equation can be written as, 

53x−1÷(5)2=(5)3

⇒(5)3x−1−2=(5)3[∵am÷an=(a)m−n]

⇒(5)3x−3=(5)3

On comparing both sides, we get

⇒3x−3=3

⇒3x=6

⇒x=2

Step-by-step explanation:

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