Solve show all work -2× + 5=4× - 7

To solve for the equation -2x+5=4x-7, you first have to isolate the variable X on one side and bring the rest to the other side

-2x+5=4x-7

Add 2x on both sides

5=6x-7

Isolate X by adding 7 on both sides

12=6x

Solve for X by dividing by 6 on both sides

x=12/6

x=2

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: