(x-2018).3=0
25(x-8)=0
25+(15+x)=75
43-(24-x)=20
15:(x-3)=3
GIÚP EMM
(x-2018).3=0 25(x-8)=0 25+(15+x)=75 43-(24-x)=20 15:(x-3)=3 GIÚP EMM
By Athena
By Athena
(x-2018).3=0
25(x-8)=0
25+(15+x)=75
43-(24-x)=20
15:(x-3)=3
GIÚP EMM
Đáp án:
( x – 2018) . 3 = 0
⇔ ( x – 2018 ) = 0
⇔ x = 2018
Vậy x = 2018
25 ( x – 8) = 0
⇔ x – 8 = 0
⇔ x = 8
Vậy x = 8
25 + ( 15 + x ) = 75
⇔ 15 + x = 50
⇔ x = 50 – 15
⇔ x = 35
Vậy x = 35
43 – (24 – x) = 20
⇔ 24 – x = 23
⇔ x = 24 – 23
⇔ x = 1
Vậy x = 1
15 : ( x – 3) = 3
⇔ x – 3 = 5
⇔ x = 5 + 3
⇔ x = 8
Vậy x = 8
Xin câu trl hay nhất ạ!
a) (x – 2018).3 = 0
x – 2018 = 0 : 3
x – 2018 = 0
x = 0 + 2018
x = 2018
Vậy x = 2018
b) 25.(x – 8) = 0
x – 8 = 0 : 25
x – 8 = 0
x = 0 + 8
x = 8
Vậy x = 8
c) 25 + (15 + x) = 75
15 + x = 75 – 25
15 + x = 50
x = 50 – 15
x = 35
Vậy x = 35
d) 43 – (24 – x) = 20
24 – x = 43 – 20
24 – x = 23
x = 24 – 23
x = 1
Vậy x = 1
e) 15 : (x – 3) = 3
x – 3 = 15 : 3
x – 3 = 5
x = 5 + 3
x = 8
Vậy x = 8