Question

please​ answer these questions​

Answer 1

Answer:

1) y-3=0

y=3

then substitute y=3

-243-516+9-15-5=0

-759+9-20=0

-779+9=0

y=-770

2). x-2=0

x=2

then substitute X=2

16+4-4-7=0

16-7=0

X=9