Question 793427
sqrtx + 2sqrtx + 3sqrtx = 180
6sqrtx = 180
square both sides:
(6sqrtx)^2 = 180^2
36x = 32400
36x/36 = 32400/36
x = 900

check:
sqrt900 + 2sqrt900 + 3sqrt900 = 180
30 + 60 + 90 = 180
180 = 180