Question

please slove step by step ​

Answer 1

$(25) ^{7.5} \times ({5})^{2.5} \div (125)^{1.5} = {5}^{x} \\ (5 ^{2} )^{7.5} \times (5) ^{2.5} \div (5^{ 3} ) ^{1.5} = {5}^{x} \\ 5 ^{15} \times (5) ^{2.5} \div (5) ^{4.5} = {5}^{x} \\ {5}^{15 + 2.5 - 4.5} = {5}^{x} \\ {5}^{13} = {5}^{x} \\ 13 = x \\ x = 13$