Question

Jika x+2y=2a+1, 3x+y=a+p, maka 5x+3y=....

Answer 1

Answer 2

X+2y=2a+1, 3x+y=a+p y= -3x+a+p
x+2(-3x+a+p)=a+p, -5x+2a+2p=a+p
5x=a+p


x+2y=2a+1 x= -2y+2a+1
3x+y=a+p 3(-2y+2a+1)+y=a+p
-6y+6a+3+y=a+p
5y=6a+3-a-p 5y= 5a-p+3
y= a-1/5 p+3/5
maka 5x+3y= a+p+3a-3/5 p+9/5=4a+2/5 p+9/5