(7/5) в степени 3х-10=(1/4) в степени 3х-10
(7/5) ³ˣ⁻¹⁰= (1/4) ³ˣ⁻¹⁰ (7/5) ³ˣ⁻¹⁰ : (1/4) ³ˣ⁻¹⁰= (1/4) ³ˣ⁻¹⁰ :(1/4) ³ˣ⁻¹⁰ (28/5) ³ˣ⁻¹⁰ =1 (28/5) ³ˣ⁻¹⁰ =(28/5) ⁰ 3х-10=0 3х=10 х=10/3 = 3 1/3