Answer:
x = 2
y = -5
Explanation:
1. y = -19 + 7x
2. -2x + 3(-19 + 7x) = -19
3. -2x - 57 + 21x = -19
4. 19x = 38
5. x = 38/19 = 2
6. -7*2 + y = -19
7. y = -19 + 14
8. y = -5
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