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yuliaparho21
@yuliaparho21
August 2022
1
10
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51z=357
2x-15=13
7y-25=45
130-4x=70
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Answers & Comments
Akula17
51z=357
z=357:51
z=7
ответ:7
2x-15=13
2x=28
x=28:2
x=14
ответ:14
7y-25=45
7y=70
y=70:7
y=10
ответ:10
130-4x=70
- 4x+130=70
- 4x= - 60
x=15
ответ:15
2 votes
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Answers & Comments
z=357:51
z=7
ответ:7
2x-15=13
2x=28
x=28:2
x=14
ответ:14
7y-25=45
7y=70
y=70:7
y=10
ответ:10
130-4x=70
- 4x+130=70
- 4x= - 60
x=15
ответ:15