13a+9+9b+12a-7b Combine like terms for each expression

 13a9 + 12a + 2b

Have a nice day!

(this answer is wrong, please do not use)

Step-by-step explanation:

25a +2b + 9

Step-by-step explanation:

first you can add all the the a together then the b then the normal numbers.

tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

welcome!

19

step-by-step explanation: