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Алана2004
@Алана2004
July 2022
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Помогите пожлуйста. Есть ли среди чисел -1 , 1/2 , 1 корень уравнения
1) 4(x-1) = 2x-3
2) 7 ( x+1)-6 x=10
3)3 (x+2) = 4+2x
4)5(x+1)-4x=4
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Answers & Comments
glebik9909
5(х+1)-4х=4
5х+5-4х=4
5х-4х=4-5
х=-1
3(х+2)=4+2х
3х+6=4+2х
3х-2х=4-6
х=-2
7(х+1)-6х=10
7х+7-6х=10
7х-6х=10-7
х=3
4(х-1)=2х-3
4х-4=2х-3
4х-2х=-3+4
2х=1
х=1:2
х=1/2
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Answers & Comments
5х+5-4х=4
5х-4х=4-5
х=-1
3(х+2)=4+2х
3х+6=4+2х
3х-2х=4-6
х=-2
7(х+1)-6х=10
7х+7-6х=10
7х-6х=10-7
х=3
4(х-1)=2х-3
4х-4=2х-3
4х-2х=-3+4
2х=1
х=1:2
х=1/2