Question

pls answer me pls anyone​

Answer 1

Answer:

4×15 +5×14 = 60+70=130by

4×15-5×14=60-70=-10

Answer 2

Step-by-step explanation:

X/Y=15/14

=>X=15Y/14

4X+5Y=4×(15Y/14)+5Y=(60Y/14)+5Y=130Y/14

4X-5Y=(60Y/14)-5Y=-10Y/14

(4X+5Y)/(4X-5Y)=(130Y/14)/(-10Y/14)=-13