3x = 2x + 6 how is this worked out?

The easiest way to solve this is to get x by itself. Here is how you do it:

3x= 2x + 6

First subtract 2x from each side

3x- 2x = 2x -2x +6

Simplify that down to:

1x=6

That will be your answer because x and 1x are the same.  

x=6

To check, plug the answer back into the equation.  

3(6)=2(6)+6

18=12+6

18=18

So that verifies that x=6

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

answer: #1 ads up by 8 and i don't know #2