(а+b)-674, a=830,b=243; a=1712, b=805

Question

(а+b)-674, a=830,b=243; a=1712, b=805

Answer 1

(830+243)-647=399
(1712+805)-647=1870

Answer 2

(a+b)-674 при а=830,b=243
(830+243)-674

a+b-674. ,,, при а=1712,b=805
(1712+805)-674