What is 2a+4b= and whats the equation

 .2 ( a + 2 b )

Step-by-step explanation:

Factor  

2

out of  

2 a + 4 b  

Simplifying

2a + 4b = 0

Solving

2a + 4b = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-4b' to each side of the equation.

2a + 4b + -4b = 0 + -4b

Combine like terms: 4b + -4b = 0

2a + 0 = 0 + -4b

2a = 0 + -4b

Remove the zero:

2a = -4b

Divide each side by '2'.

a = -2b

Simplifying

a = -2b

Hope this helps

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.