Add 31 to both sides which will give you
9h = 130
To do this, simply add the 2 functions-as it says:
(2x+1) + (-3x+4)
2x+1-3x-4
-x-3
Your answer is -x-3
If they EACH bough 2 of EACH size soda, then it would be.
S: # of different sized sodas
P: Price of soda
5×2(S×P)
but if each sized sodas cost a different amount it would be
S: Price of first size
S2: Price of second size
S3: Price of third size
and so on.
5×2(S+S2+S3...)
but if they all together bought 2 of EACH size soda, then it is.
2(S×P)
but if each sized sodas cost a different amount it would be
S: Price of first size
S2: Price of second size
S3: Price of third size
and so on.
2(S+S2+S3...)