What is (x)=4,x-12f(x)-1(x)=x ?

The solution to (x)=4,x-12f(x)-1(x)=x is x=4,f=-1/3

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(x)=4,x-12f(x)-1(x)=x

(x) = 4, x - 12 f (x) - 1 (x) = x

x = 4, f = - \frac{1}{3}

Solution steps

[(x) = 4 x - 12 f - 1 \cdot (x) = x]

Isolate

x

for

(x) = 4 : x = 4

Substitute

x = 4

[4 - 12 f - 1 \cdot 4 = 4]

Simplify

[- 12 f = 4]

Isolate

f

for

- 12 f = 4 : f = - \frac{1}{3}

The solutions to the system of equations are:

x = 4, f = - \frac{1}{3}

- 3 x + y = 1, 2 - y + 9 x = 0

r = 9, a = 1, m = 7

5 x - 4 y = 28, 3 x - 9 y = 30

\frac{1}{3} x + \frac{1}{4} y = 1, \frac{2}{3} x - \frac{3}{4} y = 1

2 x - 3 y = 15, 5 x + 4 y = 3

What is (x)=4,x-12f(x)-1(x)=x ?
The solution to (x)=4,x-12f(x)-1(x)=x is x=4,f=-1/3