Question

sa se calculeze 3×f(x)-2f(2)=0, f(x)=2x-1​

Answer 1

$f(2) = 2 \times 2 - 1 = 3 \\ 3 \times f(x) - 2f(2) = 0 \\ 3(2x - 1) - 2 \times 3 = 0 \\ 6x - 3 - 6 = 0 \\ 6x = 9 \\ x = \frac{9}{6} = \frac{3}{2}$