A somewhat different looking question. (1 Viewer)

[fortune_cookie]

Found this on a maths website. Just posting it for people interested.

If 2f(x)+3f(-x) = 15 - 4x , find f(x).

 

[SpiralFlex]

Spoiler.














Replace x with -x, use simultaneous. Good question haha.

 

[barbernator]

i let f(x)=a+bx and solved. i dont get spirals way?

EDIT: yes i do lol

 

[iSplicer]

Found this on a maths website. Just posting it for people interested.

If 2f(x)+3f(-x) = 15 - 4x , find f(x).

The f(-x) is a HUGE giveaway =P. Well done Spiral!