Question

ajutor urgent!!!!!!!!!!!!!!!!

Answer 1

c)   ( a + 92 × 13 - 4 752 ) : 7 + 50 ×2 = 114

( a + 1 196 - 4 752 ) : 7 + 100 = 114

( a + 1 196 - 4 752 ) : 7 = 114 - 100

( a + 1 196 - 4 752 ) : 7 = 14

a + 1 196 - 4 752 = 14 × 7

a = 98 + 4 752 - 1 196 → metoda mersului invers

a = 4 850 - 1 196

a = 3 654 → numarul

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( a : 45 + 987 × 4 ) : 5 + 13 200 = 14 000

( a : 45 + 3 948 ) : 5 = 14 000 - 13 200

( a : 45 + 3 948 ) : 5 = 800

a : 45 + 3 948 = 800 × 5

a : 45 + 3 948 = 4 000

a : 45 = 4 000 - 3 948

a : 45 = 52

a = 52 × 45

a = 2 340 → numarul