Put the following equation of a line into slope-intercept form, simplifying all fractions. 4y-4x=−28

y = x - 7

Step-by-step explanation:

The slope-intercept form is y = mx + b

So let's get y on one side and get rid of the rest on the other side!

So far the equation is 4y - 4x = -28. Let's move the -4x over to the other side to get 4y by itself. + 4x to both sides and you get 4y = 4x - 28.

Great! But since y isn't by itself, let's divide both sides by 4 to get rid of the 4 next to the y. Divide 4 from both sides and you get y = x - 7.

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step-by-step explanation:

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: