Angelica solves the system { x + y = - 3.

x - y = 1 } and finds the solution (1, 3). Use substitution to explain whether Angelica's solution is correct.

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3 July, 04:03

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Red Velvet · Answer 1

the correct solution is (-1,-2), angelicas answer is incorrect, comment if something confuses you

Angelica solves the system { x + y = - 3.x - y = 1 } and finds the solution (1, 3). Use substitution to explain whether Angelica's solution is correct.