Answer:
80
Step-by-step explanation:
17+13=30
22+23+5=50
30+50=80
Answer:
C
Step-by-step explanation:
Answer:
you can use decimals
Step-by-step explanation:
Answer:
X=6
Y= - 1
Step-by-step explanation:
X-y =7
X+y =5 cross - y and y
_______
X+x =7 +5
2x= 12
X= 12/2
X= 6
Replace X in first equation:
X - y =7
6 - y =7
6 - 7 =y
y = - 1
Hope this helps you.. Good Luck!
10x + 19y = -11
19y = -10x - 11
y = -10/19x - 11/19 <===