Question

B)[(10:x+630:9)•4+6]•3=918 ( metoda mersului invers Dau coroana

Answer 1

[(10:x+70)•4+6]=306
(10:x+70)•4=300
10:x+70=75
10:x=5
x=10:5
x=2

Answer 2

[(10:×+70)•4+6]•3=918/:3
[(10:x+70)•4+6]=306/-6
(10:x+70)•4=300/:4
10:x+70=75/-70
10:×=5
x=10:5
×=2