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podryga [215]
3 years ago
10

Help me with math please i don't understand anything im stupid

Mathematics
1 answer:
Jet001 [13]3 years ago
6 0
4.  one solution is (1, 3)

5. (1, -1)

7.  -5 = x + 3
 x = -5 - 3
 x = -8 

8.  z - 4 = -8
      z = -8 + 4
      z = -4
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One third of a number less than nine equal to seven
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Step-by-step explanation:
Let the number be denoted by x.
Now, we are given a word phrase as follows one-third of a number less than nine is equal to seven.
Now this word phrase could be mathematically expressed as a equation by: one third of x is 1/3 x
And this number less than 9 is given by :

9- 1/3x

Now, this number is equal to 7.
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