1) - x + 4.5 = 7 2) - y + 3.9 = 6 3) - m + 2 1/3 = 4 4) -n + 5 = 7.4 5) - k + 9 = 10.2 6)...

Question

1) - x + 4.5 = 7

2) - y + 3.9 = 6

3) - m + 2 1/3 = 4

4) -n + 5 = 7.4

5) - k + 9 = 10.2

6) -p + 5 1/7 = 8

Answer 1

1)- x + 4.5 = 7     -x=7-4,5   -x=2,5   x=-2,5 
2)- y + 3.9 = 6     3,9-6=y    -2,1=y
4)-n + 5 = 7.4    5-7,4=n     -2,4=n
5)- k + 9 = 10.2   9-10,2= k    -1,2=k

Comments

спасибо

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3) - m + 2 1/3 = 4 -m=4-2 1/3 -m= 1 2/3 m=-1 2/3

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6) -p + 5 1/7 = 8 5 1/7 -8=p -2 6/7=p

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dhjlt nfr)

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Вроде так)

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спасибо большое

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6)-p + 5 1/7 = 8 5 1/7 -8=p -2 6/7=p

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не за что)))

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все понятно написано?

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да

Answer 2

1) -х+4,5=7/: (-1)
х-4,5=-7
х=4,5-7
х=-2,5

Comments

Spasibo

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-у+3,9=6/: (-1)
у-3,9

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...=-6
у=3,9-6
у=-2,1