Question

afla numarul necunoscut si verifica
40+x-50=50
26+x-31=47
49+y-39=37
53+x-77=14
x+12-59=29
y+55-77=22
x+39-62=9

Answer 1

40+x-50=50
X=50-40+50
X=60

26+x-31=47
X=47-26+31
X=52

49+y-39=37
10+Y=37
Y=37-10
Y=27

53+x-77=14
X=77-53+14
X=38

x+12-59=29
X=29-12+59
X=76

y+55-77=22
Y=22+77-55
Y=44

x+39-62=9
X=9+62-39
X=32

Answer 2

Raspuns:
40+x-50=50
40+x=50+50
40+x=100
x=100-40
x=60

26+x-31=47
26+x=47+31
26+x=78
x=78-26
x=52

49+y-39=37
49+y=37+39
49+y=76
y=76-49
y=27

53+x-77=14
53+x=14+77
53+x=91
x=91-53
x=38

x+12-59=29
x+12=29+59
x+12=88
x=88-12
x=76

y+55-77=22
y+55=77+22
y+55=99
y=99-55
y=44

x+39-62=9
x+39=62+9
x+39=71
x=71-39
x=32