Решите уравнения а)2х-3=4 б)6х-2х+1=5 в)5-2/5x=11
А)2x-3=4 2x=4+3 2x=7 x=3.5 б) 6х-2х+1=5 4х+1=5 4х=5-1 4х=4 х=1
1) 2х - 3 = 4 2х = 4 + 3 2х = 7 х = 7 / 2 х = 3,5 2) 6х - 2х + 1 = 5 4х = 5 - 1 4х = 4 х = 4 / 4 х = 1 3) 5 - 2/5 x = 11 5 + 11 = 2/5х 16 = 2/5х х = 16 : 2/5 х = 16 * 5 / 2 х = 40