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Solve the system of equations by substitution y=1-x; -2x+y=4

Solve the system of equations by substitution y=1-x; -2x+y=4
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Solve the system of equations by substitution y=1-x; -2x+y=4

User Phenderbender
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1 Answer

6 votes

Answer:


\displaystyle [-1, 2]

Explanation:


\displaystyle -2x + [1 - x] = 4 → 4 = 1 - 3x → (3)/(3) = (-3x)/(3); -1 = x, 2 = y \\ \\ [-1, 2]

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User Just Rudy
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