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Serjik [45]
4 years ago
9

Y = x - 4. 2x + 3y = -17 substitution method

Mathematics
2 answers:
ser-zykov [4K]4 years ago
5 0

Answer:

x = -1

y = -5

Step-by-step explanation:

y = x - 4                                     y = x - 4

2x + 3y = -17                             y = (-1) - 4

2x + 3(x - 4) = -17                      y = -1 - 4

2x + 3x - 12 = -17                       y = -5

5x - 12 = -17

5x - 12 + 12 = -17 + 12                 <u>Check</u>

5x = -5                                    2x + 3y = -17

5x/5 = -5/5                           2(-1) + 3(-5) = -17

x = -1                                        -2 + -15 = -17

                                                   -17 = -17

lukranit [14]4 years ago
5 0
What they said up there ^^
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Comment

You need two inputs. The first is the sum of the numbers and the second is the number of entries in the data.

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