What is the value of x in the equation x – y = 30, when y = 15? a.4 b.8 c.80 d. 200

The value of x is:

We are given a linear equation in terms of variable x and y as follows:

Now, we are asked to find the value of x for the given value of y.

i.e. we have to evaluate the given equation for the given value of y.

Now we are given: y= 15

so by putting this value in equation (1) we have:

On adding 15 on both the sides of the equation we have:

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:

w'x is 0.

hope it