Răspuns :
824 -356 + x = 912
x = 912 - 824 + 356
x = 444
a - (373 + 26) = 496 + 113
a = 496 + 113 + 373 + 26
a = 1008
x = 912 - 824 + 356
x = 444
a - (373 + 26) = 496 + 113
a = 496 + 113 + 373 + 26
a = 1008
824-356+x=912
468+x=912
x=912-468
x=444
a-(373+26)=496+113
a-(373+26)=609
a-399=609
a=399+609
a=1008
468+x=912
x=912-468
x=444
a-(373+26)=496+113
a-(373+26)=609
a-399=609
a=399+609
a=1008