Solve 4(5x-2)=2(9x+3) (working out shown)

Step - by - step equation:

4(5x - 2) = 2(9x + 3)

20x - 8 = 18x + 6

20x = 18x + 6 + 8

20x = 18x + 14

20x - 18x = 14

2x = 14

x = 14 / 2

x = 7

Hope it helped,

BioTeacher101

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:

range is infinite on both x and y axis positive and negative

step-by-step explanation: