Answer:
can you tell me a little bit more?
Answer:

Step-by-step explanation:
Distribute the exponents


Distribute the -1

X = 5, y = -2
-x +3 = 2x - 12
-3x = -15
3x = 15
x = 5
y = -5+3
y=-2
Answer:
7837
Step-by-step explanation:
1000 + 6901 - 64 = ?
=7837