Question

if x=1,y=-1,z=2 then 9x+7y-5z​

Answer 1

$\huge\sf\underline{♡Answer♡}$

x= 1

y= -1

z= 2

A/Q,

9x+7y-5z​

= 9×1+7×(-1)-5×2

= 9-7-10

=9-17

=-8