Isolate one term (x or y) in one of the equations

6x+6y=0
6x=-6y
X= -1y

Substitute x=-y into the other equation

-7(-y) + 2y =18

7y + 2y =18

9y=18

Y=2

Substitute y=2 into 6x+6y=0

6x + 6(2) = 0

6x + 12=0

6x= -12

X = -2

8 0

3 years ago

You cut off half of a strip of paper. then you cut half of the piece was left. then you cut half of the remaining piece.

lianna [129]

Answer:

The fraction of the original strip left is $\frac{1}{8}$ .

Step-by-step explanation:

We have that,

A strip of paper is cut in $\frac{1}{2}$ . So, the strip of paper left is $\frac{1}{2}$ .

Now, again the remaining part is cut in half. The part left will be $\frac{1/2}{2}$ i.e. $\frac{1}{4}$ .

Finally, the remaining part is again cut in half.

We get, the final part of the paper remaining is $\frac{1/4}{2}$ i.e. $\frac{1}{8}$ .

So, the fraction of the original strip left is $\frac{1}{8}$ .

6 0

3 years ago

Y = 8/x<br> Input<br> Output

ExtremeBDS [4]

1.) -2
2.) -4
3.) 4
4.)2

3 0

3 years ago