Решите уравнения (РАВНОСИЛЬНОСТЬ УРАВНЕНИЙ И НЕРАВЕНСТВ)
а)[tex]2 ^{2x} =2 ^{x-9} [/tex]
б)[tex]4 ^{2x-7}=4 ^{x-1} [/tex]
в)[tex]9 ^{3x-4} = 9 ^{x+2} [/tex]
г)3[tex]3 ^{3x-1} =3 ^{7x-2} [/tex]
д) [tex]25 ^{x+1} =5 ^{ x^{2} +3x} [/tex]
е) [tex]16^{x-1} =4 ^{ x^{2} -x} [/tex]
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