(y + 5 x 5) - 6 x 6 = 40 : 2 + 3

(6x9-z)-3x10+16:2=4x3x1

(a-6x3-8:4)+81:9-3x10=30:1:2
(75-b+5x6)-(63-5x8)+=5x10+40:8


Ajutor va rog