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If 3^2x+1=3^x+5 what is the value of x

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1 vote
here it is. hope it helps...
If 3^2x+1=3^x+5 what is the value of x-example-1
User Tsilavina
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1 vote

Answer: 4


Explanation:

Given equation:
3^(2x+1)=3^(x+5)



\text{Here bases of the exponents are same therefore, the powers must be equal.}\\\Rightarrow2x+1=x+5\\\text{Subtract x from both the sides , we get}\\\Rightarrow2x+1-x=x+5-x\\\Rightarrow\ x+1=5\\\text{Subtract 1 from both sides, we get}\Rightarrow\ x+1-1=5-1\\\Rightarrow\ x=4

Therefore, the value of x= 4.

User IND
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