beemer64 beemer64

08-10-2021
Mathematics

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Solve the following systems of equations. (a) x+y = 5 x-y = -1

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discipulus discipulus

08-10-2021

Answer:

[tex]x + y = 5 ...(1)\\ x - y = - 1 ...(2)\\ add \: (1) + (2) \\ 2x = 4 \\ x = 2 \\ sub \: x = 2 \: in \: (1) \\ 2 + y = 5 \\ y = 3[/tex]

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