=》 Solution;
solving,
x+2x+6x+18=180
or, 9x + 18 = 180
or, x + 18 = 180/9
or, x + 18 = 20
or, x = 20 - 18
or, x = 2
therefore, value of x is 2
now,
i) x = 1 X x = 1 X 2 = 2
ii) 2x = 2 X x = 2 X 2 = 4
iii) 6x = 6 X x = 6 x 2 = 12
