Answer:
2
Step-by-step explanation:
w=17
-243=-9(10+w)
-243=-90-9w
+90 +90
-153=-9w
17=w
hope this helps :)
m = -2 and b = -1/3
m = -2 and b = -2/3.
y = -2x - 1/3
y = -2x - 2/3
This system has no solutions because y cannot be 2 different values at once.