How do i solve by substituting x +y = 6y = 4

Since we alredy know that y = 6 we can go ahead and insert it into the problem. It would look like this:

x + 4 = 6

Now we can begin to solve.

Since positive 4 is on one side, we can subtract it from both sides

It will look like this:

x + 4 = 6

x - 4 = 6 - 4

You end up with

x = 2

Now substitute all your known variables.

It will look like

2 + 4 = 6

This equation is true.

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.