Answer:
rearrange them properly to get
x-y=7
-3x+y=12
( by elimination method)
x-y = 7
-3x+y=
(x+ –3x) + (–y+y) = (7+12)
-2x+0= 19
x= -9.5
from eqn(i)
x-y=7
-9.5 - y=7
-y=16.5
y= -16.5
Answer:
140
Step-by-step explanation:
D) doctors told peopel thag suger would damage their health
Answer: varibles coffeeefishents exponets study then eat
Step-by-step explanation:
Answer:
1. is not
2. increase
3. remain the same
Step-by-step explanation: