Sleeping bag weights 8 pounds
sb=8
backpack+sleeping bag=31
b+sb=31
sb=8
b+8=31
subtract 8 from both sides
b+8-8=31-8
b+0=23
b=23
backpack weighs 23 pounds with out sleeping bag
equation is b+s=31
s=8
Forty million, twenty three thousand, thirty two
:P
Answer:
y = 7
Step-by-step explanation:

Add -4y and 6y

Move all terms not containing y to the right side of the equation.

Divide both sides by 2

i would need more details!
what is the answer?
Answer:
well the pic is blocked for me
Step-by-step explanation: