An unknown number y is 15 more than an unknown number x. the number y is also x less than 8. the equations to find x and y are shown below.

y = x + 15
y = −x + 8

which of the following statements is a correct step to find x and y?

multiply the equations to eliminate y.
add the equations to eliminate x.
write the points where the graphs of the equations intersect the x-axis.
write the points where the graphs of the equations intersect the y-axis.

the answer is B. add all the equations to eliminate x. its true. i did the test and  i defiantly got it right.    (brainliest would b appreciated)

Step-by-step explanation:

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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: