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  • 20-08-2021
  • Mathematics
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solve the system of equations by substitution y=1-x; -2x+y=4

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BasketballEinstein
BasketballEinstein BasketballEinstein
  • 20-08-2021

Answer:

[tex]\displaystyle [-1, 2][/tex]

Step-by-step explanation:

[tex]\displaystyle -2x + [1 - x] = 4 → 4 = 1 - 3x → \frac{3}{3} = \frac{-3x}{3}; -1 = x, 2 = y \\ \\ [-1, 2][/tex]

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