SubArea: Exponential equations and inequalitiesLevel: AProject ID: 1003044504Accepted: 1Clonable: 1Easy: 0How many solutions does the following equation have? \[ 5^x+5^{x+1}+5^{x+2}+5^{x+3}=156 \]Exactly one solutionNo solutionsInfinitely many solutionsExactly two solutions
