Question

if P = -(x - 2) Q = -2(y + 1) and R = -x + 2y find
a when P+Q+R = ax

Answer 1

Answer:

P= -(x - 2) Q = -2(y + 1) and R = -x + 2y.(Given)

P+Q+R = ax

-(x - 2) +(-2)(y + 1)+(-x + 2y)=ax

-x+2-2y-2-x+2y=ax

-2x=ax

-2=ax/x

-2=a

Step-by-step explanation:

Therefore the required number is a=-2.

Answer 2

Answer:

a= -2

Step-by-step explanation:

P= -(x-2) = - x+2

Q= -2(y+1)= -2y-2

R= -x+2y

given P+Q+R=ax

= -x+2+(-2y-2)+(-x+2y)= ax

= -x+2-2y-2-x+2y= ax

= -2x=ax

=a= -2