Question

z:[960:3+13×5-(3×100+8×10)]=123rest4


afla nr. z

Answer 1

z:[960:3+13×5-(3×100+8×10)]=123 rest 4
z:[320+65-(300+80)]=123 rest 4
z=123(320+65-380)+4
z=123(385-380)+4
z=123×5+4
z=615+4
z=619

Answer 2

z : [960:3+13×5-(3×100+8×10)]=123 rest 4
z : [ 320 + 65 - ( 300 + 80) ] = 123 rest 4
z : ( 320 + 65 - 380) = 123 rest 4 
z : (385 - 380) = 123 rest 4 
z : 5 = 123 rest 4 
z = 123 x 5 + 4 
z = 615 + 4 
z = 619