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Ella543
@Ella543
July 2022
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35 БАЛЛОВ: решите линейные уравнения и объяснит как из решать
1. 9x=3+4(5x+2)
2.5(4x+3)-7(4x-7)=24
3. 1-5(2x-5)-3(2-3x)=4x
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NNNLLL54
Verified answer
1. 9х=3+4(5х+2)
9х=3+20х+8
-3-8=20х-9х
-11=11х
х=-11:11
х=-1
2. 5(4х+3)-7(4х-7)=24
20х+15-28х+49=24
-8х=24-15-49
-8х= -40
х= -40:(-8)
х=5
3. 1-5(2х-5)-3(2-3х)=4х
1-10х+25-6+9х=4х
-х+20=4х
20=4х+х
20=5х
х=20:5
х=4
1 votes
Thanks 1
Ella543
Реши плиз: 6+7(4x-3)=3x-65
NNNLLL54
Сначала за это спасибо скажи.
Ella543
уже
Ella543
Ну, я сказала
NNNLLL54
6+28x-21=3x-65 ; 25x=-50 ; x=-2
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Answers & Comments
Verified answer
1. 9х=3+4(5х+2)9х=3+20х+8
-3-8=20х-9х
-11=11х
х=-11:11
х=-1
2. 5(4х+3)-7(4х-7)=24
20х+15-28х+49=24
-8х=24-15-49
-8х= -40
х= -40:(-8)
х=5
3. 1-5(2х-5)-3(2-3х)=4х
1-10х+25-6+9х=4х
-х+20=4х
20=4х+х
20=5х
х=20:5
х=4