Answer:
Explanation:
x + y = 7
Plug x = 3 - y
3 - y + y = 7
Combine like terms.
3 = 7
No solution.
no solution
x+y=7
x=3-y
Substitute the second equation into the first
(3-y) +y = 7
Combine like terms
This is never true so there is no solution
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