Question

Afla nr necunoscut
32-a+41-19=38
a-15-36+28-19=48

45-38+c-18+49=61
25+n-48+19=32
72-m-15+33=62

Answer 1

a) 32-a+41-19 = 38
    54-a = 38
    -a = 38-54 = -16
     a = 16
b) a-15-36+28-19 = 48
    a-42 = 48
    a = 48+42 = 90
c) 45-38+c-18+49 = 61
    c+38 = 61
    c = 61-38 = 23
d) 25+n-48+19 = 32
    n-4 = 32
    n = 32+4 = 36
e) 72-m-15+33 = 62
    90-m = 62
    -m = 62-90 = -28
    m = 28

Answer 2

32-a+41-19=38
32-a+41=38+19
32-a+41=57
32-a=57-41
32-a=16
a=32-16
a=16

a-15-36+28-19=48
a-15-36+9=48
a-15-36=48-9
a-15-36=39
a-15=39+36
a-15=75
a=75+15
a=90

45-38+c-18+49=61
7+c-18=61-49
7+c-18=12
7+c=12+18
7+c=30
c=30-7
c=23

25+n-48+19=32
25+n-48=32-19
25+n-48=13
25+n=13+48
25+n=91
n=61-25
n=36

72-m-15+33=62
72-m-15=62-33
72-m-15=29
72-m=29+15
72-m=44
m=72-44
m=28