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angel23052003
@angel23052003
July 2022
2
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(3x-12):5-(x-7):3=0
Заранее спасибо
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ВенераПискарева
( 3х-12):5-(х-7):3=0
(3х-12):5х-35:3=0
3Х+5Х=0+35×3
8Х=105
Х=105:8
Х=13,175
0 votes
Thanks 0
tan4ik3107
во второй строчке откуда 5х????
tan4ik3107
(3x-12):5-(x-7):3=0 |*15
3(3x-12)-5(x-7)=0
9х-36-5х+35=0
4х-1=0
4х=1
х=1/4 (или 0,25)
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Thanks 0
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Answers & Comments
(3х-12):5х-35:3=0
3Х+5Х=0+35×3
8Х=105
Х=105:8
Х=13,175
3(3x-12)-5(x-7)=0
9х-36-5х+35=0
4х-1=0
4х=1
х=1/4 (или 0,25)