Answer:
y=-2
Step-by-step explanation:
y+3y+5y=−18
Combine like terms
9y = -18
Divide each side by 9
9y/9 = -18/9
y = -2
Sorry but no speek English
use pythagoras theorem to solve ur problem.
Being a random number "x"
1 + x²
x=1 4/3
