Use elimination method to solve for x and y - 8y = -16 6x + 8y = -8

x =

Step-by-step explanation:

x - 8y = -16

6x + 8y = -8

= 7x = -24

Divide both sides by 7;

x =

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.