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bilyknastya3
@bilyknastya3
July 2022
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-1,4(х-6)=7(4х+1,2)
2,6(0,4х-1,4)=-3,9(1,2х-0,9)
Помогите решить,очень прошу...
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Answers & Comments
Yoh0Asakura
1) -1,4(x-6)=7(4x+1.2)
-1.4x+8.4=28x+8.4
29.4x=0
x=0
2)
2.6(0.4x-1.4)=-3.9(1.2x-0.9)
1.04x-3.64=-4.68x+3.51
5,72x=7.15
x=1.25
2 votes
Thanks 9
jekadva
-1,4(х-6)=7(4х+1,2)
-1,4x+8,4=28x+8,4
-1,4x-28x=8,4-8,4
-29,4x=0
x=0
======
2,6(0,4х-1,4)=-3,9(1,2х-0,9)
1,04x-3,64=-4,68x+3,51
1,04x+4,68x=3,51+3,64
5,72x=7,15
x=7,15:5,72
x=1,25
3 votes
Thanks 7
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Answers & Comments
-1.4x+8.4=28x+8.4
29.4x=0
x=0
2)
2.6(0.4x-1.4)=-3.9(1.2x-0.9)
1.04x-3.64=-4.68x+3.51
5,72x=7.15
x=1.25
-1,4x+8,4=28x+8,4
-1,4x-28x=8,4-8,4
-29,4x=0
x=0
======
2,6(0,4х-1,4)=-3,9(1,2х-0,9)
1,04x-3,64=-4,68x+3,51
1,04x+4,68x=3,51+3,64
5,72x=7,15
x=7,15:5,72
x=1,25