Question

Afla numerele necunoscute. a)37+a=52; b) b+39=37; c)n-7=64; d)60-m=35; e)x-28=22; f)100-y=77;

Answer 1

a)a=52-37
   a=15

b)b=37-39
b=-2

c)n=64+7
  n=71

d)m=60-35
   m=25

e)x=22+28
  x=50

f)y=100-77
  y=23

Answer 2

37+a=52
a=52-37 
a=15

 b+39=37
b=37-39
b=-2



n-7-64
n=64+7
n=71


60-m=35
m=60-35
m=25


x-28=22
x=22+28
x=50


100-y=77
y=100-77
y=23