Solve this system by Elimination 2x+y=2
4x+2y=-4

x= 1 - y/2

Step-by-step explanation:

1. Subtract y from both sides. 2x=2−y

2. Divide both sides by 22.

x=\frac{2-y}{2} x= 22−y

3. Simplify  \frac{2-y}{2}

22−y to  1-\frac{y}{2}1−2y.   and there u get ur answer x=1−2y

this is for "2x+y=2" btw hope this helped!

Step-by-step:

The first flip numbers will always add up to 1 so you do

1 - 2/7= 5/7

now it gets easy...

The second flip  head will be 2/7 because it is a biased dice and the second flip tail will be 5/7

This also applies for the bottom 2: 2/7 head, 5/7 tails

hope this helped :)