Question

68:[(12×u-55):5+3]=17
Va rog sa ma ajutati!
E urgent!

Answer 1

68:[(12xu-55) :5+3]=17

(12xu-55):5+3=68:17

(12xu-55):5+3=4

(12xu-55):5=4-3

(12xu-55):5=1

12xu-55=5x1

12xu-55=5

12xu-5=55+5

12xu=60

u=60:12

u=5

proba

68:[(12x5-55):5+3]=17

68:[(60-55):5+3]=17

68:(5:5+3)=17

68:(1+3)=17

68:4=17