Question

7.6. Решите уравнение: 1) 2-²+ 3-¹ x = 0,25; помогитеее​

Answer 1

Ответ:

$2^{-2}+3^{-1}\, x=0,25\\\\\dfrac{1}{2^2}+\dfrac{1}{3}\, x=\dfrac{1}{4}\\\\\\\dfrac{1}{4}+\dfrac{1}{3}\, x=\dfrac{1}{4}\\\\\\\dfrac{1}{3}\, x=\dfrac{1}{4}-\dfrac{1}{4}\\\\\\\dfrac{1}{3}\, x=0\\\\\\x=0$