Question

simplify and find the value for x=-2 y=-1 7x+3y+9(x-y)​

Answer 1

Answer

y==-17x+3y+9(x-y)

y=-8x-6y....(simplification)

at x=-2 we get

y=-8(-2) -6y

y=-16-6y

i.e. y+6y=-16

7y=-16

y=-16/7

Answer 2

Hey mate!

Your ans here!

X= -2,

Y= -1

= 7x+3y+9(x-y)

= 7x +3x+9x-9y

=7(-2)+3(-1)+9(-2)-9(-1)

= -14 -3 -18 +9

= -17 -9

= -26

Hope helpful for you:)