Решите уравнение : x + 37 = 81 ,150 - x = 98, ( 34 + x ) - 83 = 42 , 45 - (x - 16 ) = 28 , 4x = 72, 2x − 20 = 10,4x - 9 = 2x + 7 , 144 - ( х : 11 + 21 ) * 2 = 14 50 баллов даю)))
More Questions From This User See All
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
x + 37 = 81
x = 81 -37
x = 44
Проверка:
44+37=81
81=81
150 - x = 98
х = 150 - 98
х = 52
Проверка:
150-52=98
98=98
( 34 + x ) - 83 = 42
34 + х = 42 + 83
х + 34 = 125
х = 125 - 34
х = 91
Проверка:
( 34 + 91) - 83 = 42
42 = 42
45 - (x - 16 ) = 28
х - 16 = 45 - 28
х - 16 = 17
х = 17 + 16
х = 33
Проверка:
45 - (33 - 16) = 28
28 = 28
4x = 72
х = 72 : 4
х = 18
Проверка:
4*18 = 72
72 = 72
2x − 20 = 10
2х = 10 + 20
2х = 30
х = 30 : 2
х = 15
Проверка:
2*15 - 20 = 10
10 = 10
4x - 9 = 2x + 7
4х - 2х = 7 + 9
2х = 16
х = 16 : 2
х = 8
Проверка:
4*8 - 9 = 2*8 + 7
23 = 23
144 - ( х : 11 + 21 ) * 2 = 14
( х : 11 + 21 ) * 2 = 144 - 14
( х : 11 + 21 ) * 2 = 130
х : 11 + 21 = 130 : 2
х : 11 + 21 = 65
х : 11 = 65 - 21
х : 11 = 44
х = 44*11
х = 484
Проверка:
144 - (484:11 + 21) *2 = 14
14=14