4,2*(0,25+х)=1,47
1,05+4,2х=1,47
4,2х=1,47-1,05
4,2х=0,42
х=0,42:4,2
х=0,1
4.2 • (0.25 + х) = 1.47
0.25 + х = 1.47 : 4.2
0.25 + х = 0.35
Х = 0.35 - 0.25
Х = 0.1
Проверка
4.2 • (0.25 + 0.1) = 1.47
4.2 • 0.35 = 1.47
1.47 = 1.47
4,2*(0,25+х)=1,47
1,05+4,2х=1,47
4,2х=1,47-1,05
4,2х=0,42
х=0,42:4,2
х=0,1
4.2 • (0.25 + х) = 1.47
0.25 + х = 1.47 : 4.2
0.25 + х = 0.35
Х = 0.35 - 0.25
Х = 0.1
Проверка
4.2 • (0.25 + 0.1) = 1.47
4.2 • 0.35 = 1.47
1.47 = 1.47