Question

Dublul sfertului unui nr adunat cu 56 eate egal cu 100.Afla nr

Answer 1

2 x ( a : 4 ) + 56 = 100
2 x ( a : 4) = 100 - 56
2 x ( a : 4) = 44
a : 4 = 44 : 2
a : 4 = 22
a = 22 x 4 
a = 88

Answer 2

2 × ( a : 4 ) + 56 = 100 / - 56
2 × ( a : 4 ) = 44 / : 2
a : 4 = 22
a = 22 × 4
a = 88