3x-y=0 equation1 4x+3y=26 equation2 please can your find y and x

multiply 1st by 3

9x - 3y = 0
4x + 3y = 26
add them:
13x = 26
x = 2

back into original #1
3(2) - y = 0
-y = -6
y = 6

x = 2, y = 6