Answer:
Step-by-step explanation:
-8y-4x^3-1
-1 - 8y - 4x³
or
-8y - 4x³ - 1
4x³ - 8y - 1
7 - 6y - 5x³ - 1 + x³ - 7 - 2y
add LIKE terms
- 6y - 2y
7 - 1 - 7
-5x³ + x³
=
Hope this helps and a thank won't hurt! :)
2.04
x=35, y=21. (35, 21).
x+y=56
x-y=14
------------
2x=70
x=70/2
x=35
35+y=56
y=56-35
y=21
