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Y = x - 2 and x + y = 4 in substitution method please help me​
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Y = x - 2 and x + y = 4 in substitution method please help me​

User Swizard
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Answer:


y = x - 2 \\ x + y = 4 \\ x + x - 2 = 4 \\ 2x = 4 + 2 \\ 2x = 6 \\ x = 3 \\ y = 3 - 2 = 1

User Fedor Losev
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