It is known that x = 4, y = 2 are the solutions of the equations 2x + (m-1) y = 4, NX + y = 2, and the value of (M + n) 2007 power is obtained Don't use functions, folks

Substituting x = 4 y = 2 into the equations 2x + (m-1) y = 4 NX + y = 2
8 + 2 (m-1) = 4
8+2m-2-4=0
2m+2=0
m=-1
4n+2=2
n=0
(m+n)^2007
=(-1)^2007
=-1

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