-2x-y=3 ...(1)
x+2y=4 ...(2)
multiply (2) by 2 and add to (1)
-2x-y+2x+4y=3+8
3y=11
y=11/3
from (2)
x=4-2y=4-2(11/3)
or x=4-(22/3)
=(12-22)/3=-10/3
Answer:
5% decrease
Step-by-step explanation:
Answer:
$36.9135
Step-by-step explanation:
Markup = 17% of 31.55
= 17/100 × 31.55
= 5.3635
Retail price = whole sale price + markup
= 31.55 + 5.3635
= $36.9135
Answer:
6-2y
Step-by-step explanation:
when transposed
3x+6y=18 becomes
3x=18-6y
x=18-6y/3
x=6-2y
hope this helps
plz mark me brainliest
Answer:
B=-6
Step-by-step explanation:
-21+9=-12
-12/2=-6
You can check it.
