Determine the value of x
2x + y = 8
x + 3y = -6

2x + y = 8
x + 3y = -6

Note: This is the process of elimination

First: Multiply one side by -3 to get rid of your y's.

It should look like:
-3 ( 2x + y) = 8 (-3)

Then it should look like:
-6x - 3y = -24
x + 3y = -6

Go ahead: Get rid of the y's

Your equation should then look like:
-6x = -24
x = -6

Next: You would add x to -6x and subtract -6 from -24.

It should look like:
-5x = -30

Finally: You would get your x alone and divide both sides of your equal sign by -5.

Remember: Negative and a negative makes a positive.

Your answer should be:
x = 6

HOPE THIS HELPS! ^_^

answer: 230 miles ( vote ! )

step-by-step explanation:

180.39 minus 17.99 equals 162.4

then divide 162.4 by .80 to get 230

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.