milagarza0328 milagarza0328
  • 12-11-2020
  • Mathematics
contestada

How many solutions does the system have?

4x - 2y = 8
2x + y = 2

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Learntionary
Learntionary Learntionary
  • 12-11-2020

Answer:

x = 3/2, y = -1

Step-by-step explanation:

4x - 2y = 8 --(1)

2x + y = 2

y = 2 - 2x --(2)

sub (2) into (1):

4x - 2(2 -2x) = 8

4x -4 + 4x = 8

8x = 12

x = 3/2

when x = 3/2, y = -1

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