7/18
Пошаговое объяснение:
2х÷7 = 1×2/3 ÷ 3×1/2
2/7х = 1/3 × 1/3
2/7х = 1/9
х = 7/18
2х÷7=12/3÷31/2
2х÷7=8/31
2х=8/31÷7
3х=56/31
х=168/31
7/18
Пошаговое объяснение:
2х÷7 = 1×2/3 ÷ 3×1/2
2/7х = 1/3 × 1/3
2/7х = 1/9
х = 7/18
2х÷7=12/3÷31/2
2х÷7=8/31
2х=8/31÷7
3х=56/31
х=168/31