If y=2x+9 and y=6-x
what is the solution?

We have:

First multiply the second equation by 2 to get:

Then add the equations to eliminate the x-terms to get:

And finally use calculated y and plug it in one of the original equations to find x:

The solution is a point where lines and intersect.

Hope this helps.

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29