Answer: could you please be more clear..?
Step-by-step explanation:
<span>2x+3y=7
x-y=1
</span>2x+3y=7
x=1+y
2*(1+y)+3y=7
x=1+y
2+2y+3y=7
x=1+y
5y=5 |(:5)
x=1+y
y=1
x=2
CHECK:
2x+3y=7
x-y=1
2*2 + 3*1 = 7
x-y = 1
2-1 = 1
8/12. 4/6. 2/3 is the simplest. Just keep dividing it down until you can't divide anymore:)
Answer: removes liquid waste and hormones from the blood and works closely with the nervous system.
Step-by-step explanation: i dunno just researched it online lol
