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Paraphin [41]
3 years ago
6

Y = 6x + 11 2х - Зу = 7

Mathematics
1 answer:
irakobra [83]3 years ago
8 0

9514 1404 393

Answer:

  (x, y) = (-2.5, -4)

Step-by-step explanation:

Since you are given an expression for y, it is convenient to substitute that into the second equation.

  2x -3(6x +11) = 7

  2x -18x -33 = 7

  -16x = 40 . . . . . . add 33

  x = -40/16 = -2.5

Using the equation for y, we find ...

  y = 6(-2.5) +11 = -15 +11 = -4

The solution is (x, y) = (-2.5, -4).

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Write a linear function f with the values f(0)=−3 and f(7)=11.
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