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Lerka200387
@Lerka200387
July 2022
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2х-1=0
х+9=4х+3
3/4(4х+8)=9-(7х-1)
уравнения помогите
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helena312
2х-1=0
2х=1
х=1/2
Проверка
2*1/2-1=0
1-1=0
х+9=4х+3
х-4х=3-9
-3х=-6
х=-6:-3
х=2
Проверка
2+9=4*2+3
11=11
3/4(4х+8)=9-(7х-1)
3х+6=9-7х+1
3х+7х=9+1-6
10х=4
х=4/10=0,4
Проверка
0,75(4*0,4+8)=9-(7*0,4-1)
0,75*9,6=9-1,8
7,2=7,2
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Answers & Comments
2х=1
х=1/2
Проверка
2*1/2-1=0
1-1=0
х+9=4х+3
х-4х=3-9
-3х=-6
х=-6:-3
х=2
Проверка
2+9=4*2+3
11=11
3/4(4х+8)=9-(7х-1)
3х+6=9-7х+1
3х+7х=9+1-6
10х=4
х=4/10=0,4
Проверка
0,75(4*0,4+8)=9-(7*0,4-1)
0,75*9,6=9-1,8
7,2=7,2