Ответы на вопрос:
а) x = 0,13
б) x = -2
в) x = 1 2/3
г) y = -1
д) x = 2
е) y = 4
ж) x = 2/11
з) x = 7
и) x = 13
Пошаговое объяснение:
а) 13 - 100x = 0
-100x = -13
x = -13/-100
x = 0,13
б) 7x - 4 = x - 16
7x - x = 4 - 16
6x = -12
x = -12/6
x = -2
в) 13 - 5x = 8 - 2x
2x - 5x = 8 - 13
-3x = -5
x = -5/-3
x = 5/3
x = 1 2/3
г) 4y + 15 = 6y + 17
4y - 6y = 17 - 15
-2y = 2
y = 2/-2
y = -1
д) 5x + (3x - 7) = 9
5x + 3x - 7 = 9
5x + 3x = 9 + 7
8x = 16
x = 16/8
x = 2
е) 3y - (5 - y) = 11
3y - 5 + y = 11
3y + y = 11 + 5
4y = 16
y = 16/4
y = 4
ж) 13 - (5x + 11) = 6x
13 - 5x - 11 = 6x
-5x - 6x = 11 - 13
-11x = -2
x = -2/-11
x = 2/11
з) (7x + 1) - (6x + 3) = 5
7x + 1 - 6x - 3 = 5
7x - 6x = 5 - 1 + 3
x = 7
и) (5x + 2) - (4x + 7) = 8
5x + 2 - 4x - 7 = 8
5x - 4x = 8 + 7 - 2
x = 13
Популярно: Математика
-
maltsevaalbina200617.01.2022 21:16
-
assasin09811.08.2020 14:17
-
Кисамяумяумур20.07.2021 20:45
-
Cool28120.06.2023 10:38
-
Konopleva1947lina04.08.2021 13:49
-
Verabogomaz08.01.2022 23:28
-
ben2903.01.2020 00:17
-
Avakado0125.12.2021 00:29
-
Anastasia555563316.11.2022 14:51
-
artemivanyk20010.12.2021 00:40