Question

# Question 177(vi) Find x. 5x+5x−1=750

Solution

## 5x+5x−1=750⇒5x+5x5=750⇒5x(1+15)=750⇒5x(65)=750⇒5x=750×56⇒5x=125×5⇒5x=53×5⇒5x=54 Since the base are same on both sides, we can equate the powers. On equating  the powers of 5, we get                            x = 4

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