a)91-5.(5+x)=61 ;b)[(x+34)-50].2=56;c)1045-[2015-(3x-24)]=5;d)[195-(3x-27)].39=4212;e)30-3(x-2)=18
Tìm x biết ( 3x - 1 )5- 2 = 30
Bài 22 :
a. - 12 . ( x - 5 ) + 7 . ( 3 - x ) = 5
b. 30 . ( x + 2 ) - 6 . ( x - 5 ) - 24x = 100
Bài 23 :
a. xy - 3x = - 19
b. 3x + 4y - xy = 16
A (3x+2)(y-1)=30
B (x+1)(24+1)=30
tìm x 30 thuộc (3x-2) 2 giờ nộp bài rồi
Tìm x, biết:
1) 14x - 5 = 8x + 10
2) 15 + 5x = 3x + 30
3) 2x - 5 = 15- 3x
4) 2 ( 3x + 5 ) + 3 ( x + 1 ) = 6x + 20
5) 4 ( x - 3 0 + 5 ( x - 3 ) = 18
a) 2/3+1/3:x=3/5
b) 10/3x +67/4=-13,25
c) x+30℅x=-1,3
d) (14/5x -50):2/3=51
e) 2/5+3/5.(3x-3,7)= -53/10
f) 2/3x -3/2x =5/12
Tìm x biết
a) (x-2018).3=0
b)2018.(3x-18)=0
c)25+(15+x)=75
d)136-2(164-x)=30
e)30-(14+2x)=8
f)56:(3x-1)=7
Lưu ý: 3x là 3.x, 2x là 2.x nha
Làm ơn hãy giúp mình
111 :{13 - [30-2.(3x + 5 )] +4.8 =3
tim so nguyen x
(3x+9).(3x-6)=0(2x+15)-25=47-(10-x)30(x=2)-6(x-5)-24x=100/4-3x/=8/2x-5/=13/7x+3/=66