Answer:
standard form is 6x−11y=13
16. -0.65, -3/8, 5/16, and 2/4
18. -5/8, -0.6, -7/12, 0.72
20. -0.35, -0.3, 0.5, 0.55
Hope this helps!.
( 'x' is not 144 .)
The supplement of an angle is (180 - x) .
The problem says that (2/3) of 'x' is equal to (180 - x) .
180 - x = 2/3 x
Multiply each side by 3 :
( Note: 3 x 180 = 540 .)
540 - 3x = 2x
Add 3x to each side:
540 = 5x
Divide each side by 5 :
<u>x = 108°</u> .
This is as simplified as it gets since there are none of the same variables.
