OK, pas grave, il me semble que 1/3x = ( 1/3)x. On va faire comme si.
x - x/3 = 2x/3
( 1/3)x + ( 2/5)(2x)/3 + 132 = x
x - ( 1/3)x - ( 2/5)(2x)/3 + 132 = 0
x ( 1 - 1/3 - 4/15) = - 132
x ( (15 - 5 - 4)/15) = 132
6x/15 = 132
2x/5 = 132
x = 132 * 5 / 2
x = 330