diket f(x) = 2x-5, g(x) = 3-x dan (f0g)(m)=7. nilai m...

[tex]f(x) = 2x - 5 \\ g(x) = 3 - x \\ fog(m) = 7 \\ \\ fog(x) = f(g(x)) \\ fog(x) = f(3 - x) \\ fog(x) = 2(3 - x) - 5 \\ fog(x) = 6 - 2x - 5 \\ fog(x) = 1 - 2x \\ fog(m) = 1 - 2m \\ 7 = 1 - 2m \\ 1 - 2m = 7 \\ - 2m = 7 - 1 \\ - 2m = 6 \\ m = - 3[/tex]
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