Question

Afla numarul necunoscut (75-25):5×a=60 b:(26×3-70)=9 (38-2+14):c=25 1008×2-d=10

Answer 1

( 75-25) :5*a =60
50:5*a =60
10*a =60
a = 60:10
a =6

b: (26*3 - 70 ) = 9
b : ( 78 - 70 ) = 9
b : 8 = 9
b = 9*8
b = 72

( 38 - 2 + 14 ) :c = 25
50 : c = 25
c = 50 : 25
c = 2

1008 * 2 -d = 10
2016 - d = 10
d = 2016 - 10
d = 2006