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How do I solve this system of equation by method of substitution?
Science & Mathematics by Anonymous 2018-05-25 11:05:44
Social Science
How do I solve this system of equation by method of substitution?
2 answers
x - y = -19 x^2 - y = 1
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Anonymous
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Anonymous
x^2-x-19 = 1 (x-5)(x+4) = 0 x = -4, y = 15 or x = 5, y = 24