100-7.x=30
7.x=100-30
7.x=70
x=70:7
x=10
Nhấn đúng cho mk nha!!!!!!!!!!!!! ^^
7x = 100 - 30
7x = 70
x = 70 : 7
x = 10
-12(x-5)+7(3-x)=5 30(x+2)-6(x-5)-24x=100
(x+1-5)+7(3-x)=5 30(x+2)-6(x-5)-24x=100
(x+1)+(x+3)+(x+5)+........+(x+99)=0
Tìm x, biết:
a. -12 . ( x - 5 ) + 7 . ( 3 - x ) = 15
b. 30 . ( x + 2 ) - 5 . ( x - 5 ) - 24 . x = 100
c. ( 30x + 60 ) - ( 6x - 30 ) - 24x = 100
( giải chi tiết nha )
\(\left(x-7\right)^{30}=\left(x-7\right)^{100}\)
Tìm x biết: a) – 12(x – 5) + 7(3 – x) = 5 b) 30(x + 2) – 6(x – 5) – 24x =100
- 12 . ( x - 5 ) + 7 . ( 3 -x ) = 5
30 . ( x +2 ) - 6 . (x -5 ) - 24x = 100
a,-12(x-5)+7(3-x)=5
b,-12x-(-12).5+7.3-7.x=5
c,30(x+2)-6(x-3)-24.x=100
x*(x+3)=0
-12(x-5)+7(3-x)=5
30(x+2)-6(x-5)-24x=100
Tìm x
a, -12.(x-5)+7.(3-x) = 15
b, 30-(x+2)-6.(x-5)-24x=100
tìm x:
a) -12(x-5)+7(3-x)=15
b) 30(x+2)-6(x-5)-24x=100
