Question

3,075 : 1,5 - 1/4 * (2х + 3,26)=1,225 найдите Х

Answer 1

$2.05 - 0.5x - 0.815 = 1.225 \\ - 0.5x = 1.225 - 2.05 + 0.815 \\ - 0.5x = - 0.01 \\ x = - 0.01 \div ( - 0.5) \\ x = 0.02$

Answer 2

3,075 : 1,5 - 1/4 * (2х + 3,26)=1,225  

Для начала откроем скобки

3,075 ÷ 1,5 - 1/2х - 163/100 = 1,225

205/100 - 1/2х - 163/100 = 1225/1000

1/2х = 1225/1000 - 205/100 + 163/100

1/2х = 805/1000

х = 805/500

х ≈ 1,61