a) (x - 45) .27 = 0
=> x - 45 = 0
=> x = 45
b) 23 . (42 - x) = 23
42 - x = 1
x = 42 - 1
x = 41
a)(x-45)x27=0
(x-45) =0x27
x-45 =0
x =0+45
x =45
b)23x(42-x)=23
(42-x)=23:23
42-x=1
x=42-1
x=41
k mik nhé
(x-45).27=0
x-45=0x25
x-45=0
x=0+45
x=45
23.(42-x)=23
42-x=23:23
42-x=1
x=42-1
x=41
k cho minh nhe minh k ai chothiên thần hòa bình!
a) (x - 45 ).27=0
x - 45 =0:27
x - 45 = 0
x = 0 + 45
x = 45
b) 23.(42-x)=23
42-x =23:23
42-x =1
x =42-1
x =41
(x-45).27=0
27.x-45.27=0
27x-1215=0
27x=1215
x=1215:27
x= 45
23.(42-x)=23
23.42-23.x=23
996-23x=23
943x=23
x=943:23
x=41
a) (x-45).27=0
(x-45) =0:27
x-45 =0
x =45
b) 23.(42-x)=23
(42-x)=1
x=41