Question

Afla numarul necunoscut (78-x)+34=2030-45

Answer 1

(78-x)+34=2030-45
78-x=1985-34
-x=1951-78
x=-1873
proba
(78-(-1873))+34=1985
78+1873+34=1985

Answer 2

(78-x)+34=2030-45 (78-x+34=1985 78-x=1985-34 78-x=1961 x=1961+78 x=2039