a,x+5=5x5
x+5=25
x=25-5
x=30
b,20+x=-360
x=-360-20
x=-360+(-20)
x=-380
a ) x + 5 = 5 x 5
x + 5 = 25
x= 25 - 5
x = 20
nè hacker mũ trắng 25 - 5 mà = 30 à
b ) 20 + x = -360
x= 20 - (-360 )
x= - 360-20
x= -380
k nha
a,x+5=5x5
x+5=25
x=25-5
x=30
b,20+x=-360
x=-360-20
x=-360+(-20)
x=-380
Vào lúc: 2017-07-20 15:23:43 Xem câu hỏi
(890-15):x=35
875:x=35
x=875:35
x=25
Vậy x=25
x+5=5x5
x+5=25
x=25-5
x=20
20+x=-360
x=-360-20
x=-380
a) x+5=5.5 b) 20+x=360
x+5 =25 x=360-20
x = 25-5 x=340
x =20
a ) x + 5 = 5 x 5
x + 5 = 25
x = 25 - 5
x = 20
a, x + 5 = 5 × 5
x + 5 = 25
x = 25 - 5
x = 20
b, 20 + x = -360
x = -360 - 20
x = -380