1. 9
2. 20
Пошаговое объяснение:
1. 2x - 1,87 = 16,13,
2x = 16,13 + 1,87,
2x = 18,
x = ,
x = 9.
2. 19y + 152,4 = 532,4,
19y = 532,4-152,4,
19y = 380,
y = ,
y = 20.
2x=16,13+1,87
2x=18
x=18÷2
x=9
19y+152,4=532,4
19y=532,4-152,4
19y=380
y=380÷19
y=20
1. 9
2. 20
Пошаговое объяснение:
1. 2x - 1,87 = 16,13,
2x = 16,13 + 1,87,
2x = 18,
x =
,
x = 9.
2. 19y + 152,4 = 532,4,
19y = 532,4-152,4,
19y = 380,
y =
,
y = 20.