👤

[(a-2)×3+26]÷25=8 ajutor
[(a-1)÷100+90]÷10-10=0​


Răspuns :

Răspuns:

[(a-2)x3+26] : 25 = 8

(a-2)x3+26 = 25x8

(a-2)x3+26=200

(a-2)x3=200-26

3a-6=174

3a=174+6

3a=180

a=180 : 3

a = 60

[(a-1) : 100+90] : 10-10=0​

[(a-1) : 100+90] : 10 = 10

(a-1) : 100+90 = 100

(a-1) : 100 = 100-90

(a-1) : 100 = 10

a-1 = 1000

a = 1000 + 1

a = 1001

[(a-2)×3+26]:25=8

[(a-2)×3+26]=8×25

[(a-2)×3+26]=200

(a-2)×3=200-26

(a-2)×3=174

a-2=174:3

a-2=58

a=58+2

a=60

[(a-1):100+90]:10-10=0

[(a-1):100+90]:10=0+10

[(a-1):100+90]:10=10

[(a-1):100+90]=10×10

[(a-1):100+90]=100

(a-1):100=100-90

(a-1):100=10

a-1=10×100

a-1=1000

a=1000+1

a=1001