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maria27041
@maria27041
July 2022
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1*(4-7х)+5(1-х)=4-3*(2х+1). помогите пожалуйста решить.
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УльянаЛенана
4-7х+5-5х=4-6х-3
4+5-4+3=-6х+7х+5х
8=6х
х=6:8
х=3:4
х=0.75
вроде так
0 votes
Thanks 1
amanty
А почему 6 делится на 8, а не 8 на 6?
amanty
1*(4-7x)+5*(1-x)=4-3*(2x+1)
4-7x+5-5x=4-6x-3
9-12x=1-6x
-12x+6x=1-9
-6x=-8
x=-8/-6=8/6=4/3=1 1/3
x=1 1/3
0 votes
Thanks 1
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Answers & Comments
4+5-4+3=-6х+7х+5х
8=6х
х=6:8
х=3:4
х=0.75
вроде так
4-7x+5-5x=4-6x-3
9-12x=1-6x
-12x+6x=1-9
-6x=-8
x=-8/-6=8/6=4/3=1 1/3
x=1 1/3