Question

calculează:
a) 24:b•10=30,
b) (x-32)+43=80,
C) 50-(x+18)=20,
d) 35+(x-43)=52,
e) (75-x)+35=50,
f) 5•(b:6)=25
ajutor:(((((
dau coroană ​

Answer 1

Răspuns:

24:8•10=30

atât știu,sper că măcar primul e corect

Answer 2

a) 24:b•10=30
24:b=30:10
24:b=3
b=24/3=8

b) (x-32)+43=80
x-32=80-43
x-32=37
x=32+37
x=69

c)50-(x+18)=20
-(x+18)=20-50
x+18=30
x=30-18
x=12

d) 35+(x-43)=52
x-43=52-35
x-43=17
x=17+43
x=60

e) (75-x)+35=50
75-x=50-35
75-x=15
x=75-15
x=60

f) 5•(b:6)=25
b:6=25:5
b:6=5
b=5•6
b=30