You can do subtract half of 4 which is 2 and multiply by 2 by 7 so it will be 2x14 which is the same thing as 7x4<span />
70+110=180
360-180=180
180/2=90
the other 2 angles are both 90.
I'm not to sure but this is what I got....
1. 2=7x+7
-7 -7
-5/7= 7x/7 What you do to one side you always do to the other.
x = -5/7
2. 3/5 = 5y/5
y = 3/5
Hope it helped! : )
18.5-17.25= 1.25 hope this helps. dvhftftdrdrdessesehuuhughgygyfyfgfgvhbhfgfgfgvgvgfgg