Answer:
Step-by-step explanation:
x-9/3=56/x+4; (x-9/3)*3/1=(56/x+4)*3/1; x-9= 168/x+4;
(x-9)*(x+4)=(168/x+4)*(x+4); x^2+4x-9x-36=168; x^2-5x-36-168=168-168;
x^2-5x-204=0; x=17 or x= -12
yes i know there is a bit missing i just put it into a graphing calculator at the last part
