-2(x-6)-4=2(8-x)-x first perform indicated operations on both sides...
-2x+12=16-2x-x
-2x+12=16-3x add 3x to both sides
x+12=16 subtract 12 from both sides
x=4
So whats the question or you stating a statement.
Acute angle: Angle that is less than 90 degree
obtuse: Angle that is greater than 90 degree
right angle: Angle that is exactly 90 degree
straight: Angle that is 180 degree ( line)
Good luck :)
The answer for 10x - 2y = 20 is y= 5x - 10
The answer for 5x = y + 10 is y = 5x - 10
so basically from this 5x - 10 is the results and 10x - 2y = 20 and 5x = y + 10 are different problems that lead to the same result, hope this helps