Answer:
Step-by-step explanation:
<u>Add up:</u>
<u>Find y:</u>
(10)x= -7_______(i)
3x-5y= -16____(ii)
put value of x in (ii) then we have:-
3x-5y= -16
3(-7)-5y= -16
-21-5y= -16
-5y = -16+21
-5y = 5
y = 5/-5= -1
y= -1
(11)
8,400
It is 16
Hope this helped have an amazing day/month/year!