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Ivan
3 years ago
10

Solve by substitution. Check X+y=8 Y=x-2

Mathematics
1 answer:
prisoha [69]3 years ago
5 0
X + y = 8
Replace y as y = y                  Insert x back into the original
x + x - 2 = 8                             5 + y = 8
2x - 2 = 8                                - 5         - 5
    + 2  + 2                                      y = 3 
2x = 10                                     (5, 3)
---    ---
2      2
x = 5

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