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maxmanin410
@maxmanin410
June 2023
2
4
Report
2х + 7х = 45
14х - 6х = 32
3х + 49 = 67
71 - 5х = 56
вирішіть рівняння всі даю 30 балів срочно
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Answers & Comments
sarahaanastasia
5 клас? Ладно,
2х+7х=45
9х=45
Х=45:9
х=5
14х-6х=32
8х=32
Х=32:8
х=4
3х+49=67
52х=67
х=67-52
х=15
71-5х=56
66х=56
Х=66-57
Х=10
1 votes
Thanks 1
polina1963
Verified answer
2x+7x=45
9x=45
x=45:9
x=5
14x-6x=32
8x=32
x=4
3x+49=67
3x=67-49
3x=18
x=18:3
x=6
71-5x=56
5x=56-71
5x=-15
x=-15:5
x=-3
2 votes
Thanks 1
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Answers & Comments
2х+7х=45
9х=45
Х=45:9
х=5
14х-6х=32
8х=32
Х=32:8
х=4
3х+49=67
52х=67
х=67-52
х=15
71-5х=56
66х=56
Х=66-57
Х=10
Verified answer
2x+7x=459x=45
x=45:9
x=5
14x-6x=32
8x=32
x=4
3x+49=67
3x=67-49
3x=18
x=18:3
x=6
71-5x=56
5x=56-71
5x=-15
x=-15:5
x=-3