Answer:
incorrect is They have a sum of -14
Answer:
she has 6 $5 bills and 4 $10 bills I think I'm not sure
Answer:
put 8/3
Step-by-step explanation:
Given

Substitute.
2x+(2x -15) = -3
4x -15 = -3
Add 15 to both sides
4x = 12
Divide by 4
X=3
2(3) + y = -3
6+y=-3
-6 from both sides
Y=-9
(3,-9)
Answer:
u = 1.5
Step-by-step explanation:
5+4u=11
-5 -5
4u = 6
/4 /4
u=1.5