Three times a number, minus 2, is equal to two times the number, plus 7.

X=9

Step-by-step explanation:

Let the number be x

So three times of the number is 3x

Minus 2,3x-2

Two times of the number=2x

Plus 7,2x+7

Let's solve

3x-2=2x+7

Collect like terms

3x-2x=7+2

x=9

Therefore the value for x is 9

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: