Răspuns :
783-632=x+96
151=x+96
x=151-96
x=55
y-676=823-409
y-676=414
y=414+676
y=1090
1023-z=126+309
1023-z=435
z= 1023-435
z=588
Explicație pas cu pas:
783-632=x+96
151=x+96
x=151-96
×=55
v:783-632=55+96
151=151
y-676=823-409
y-676=414
y=414+676
y=1 090
v:1 090-676=823-409
414=414
1 023-z=126+309
1 023-z=435
z=1 023-435
z=588
v:1 023-588=126+309
435=435