Question

44. Rezolvaţi următoarele ecuații:
a. r.7=21
e. x+26=75
b. r.9=54
f. 3.x=123
C. r.10=70
g. 176+x=30
d. x-11=29
h. 3x-1=14


Dau coroana, sunt la ora ✍

Answer 1

r=21:7=3
x=75-26=49
r=54:9=6
x=123:3=41
r=70:10=7
x=30-176=-146
x=29+11=40
3x=15 x=15:3=5

Answer 2

Răspuns:

a. r.7=21

r=21:7=>r=3

e. x+26=75

x=75-26=>x=49

b. r.9=54

r=54:9=>r=6

f. 3.x=123

x=123:3=>x=41

C. r.10=70

r=70:10=>r=7

g. 176+x=30

x=30-176=>x=-146

d. x-11=29

x=29+11=>x=40

h. 3x-1=14

3x=14+1=>x=15:3=>x=5