Найдите корень уравнения 1) 6/5x=3/5 2)4/7x=1 3)3/4x=12 - вопрос №719848616535247133412471515285514 от lorunshik 15.12.2020 07:16

Question

Математика: Найдите корень уравнения 1) 6/5x=3/5 2)4/7x=1 3)3/4x=12 4)x: 7/15=15/28 5)5 1/4: x=7/8 6)3 3/7: x=1 5/7

lorunshik · Answer

1) 6/5x=3/56/5x : 3/5 = 3/5 : 3/56/5x * 5/3 = 16/3x = 12x = 1 x = 0,52)4/7x=14x = 7x = 7/4x = 1,753)3/4x=123x = 48x = 164)x:7/15=15/28x * 15/7 = 15/2860x = 15x = 0,255)5 1/4:x=7/85 2/8 : x = 7/87/x = 7/856 = 7xx = 86)3 3/7:x=1 5/76/x = 66 = 6xx = 1...