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noname229
@noname229
July 2022
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Плиз помогите решить уравнение
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zaichik2003
0,2*(x-2)=(x+3)*0,7
0,2x-0,4=0,7x+2,1
0,2x-0,7x=2,1+0,4
-0,5x=2,5
-x=2,5:0,5
-x=5
x=-5
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anna2874
3/4k - 12,5 = 9/8k - 1/8
3/4k - 9/8k = 12, 5 - 1/8
0, 75k - 1, 125k = 12,5 - 0,125
-0, 375k = 12, 475
k = 12, 375: (-0, 375)
k = -33
Возможно так
0 votes
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Answers & Comments
0,2x-0,4=0,7x+2,1
0,2x-0,7x=2,1+0,4
-0,5x=2,5
-x=2,5:0,5
-x=5
x=-5
3/4k - 9/8k = 12, 5 - 1/8
0, 75k - 1, 125k = 12,5 - 0,125
-0, 375k = 12, 475
k = 12, 375: (-0, 375)
k = -33
Возможно так