f=(2×-3)=7×-16 nilai f(7) adalah

f(2x - 3) = 7x - 16
f(7) = ?

2x - 3 = 7
2x = 7 + 3
2x = 10
x = 10/2 = 5

f(2(5) - 3) = 7(5) - 16
f(10 - 3) = 35 - 16
f(7) = 19

maaf kalau salah
semoga membantu