420 + 65 . 4 = ( x + 175 ) : 5 + 30
(32.15) : 2 = (x + 70) : 14 - 40
x - 4867 = ( 175 . 2050 . 76) + 25 + 23
giup em a
THU GỌN BIỂU THỨC
a) - ( 4 - x ) + ( 15 - 25 )
b)( a+ 175 ) - ( 175 - 53 ) - ( 53 - 157 )
c)( x -127 ) - ( 123 - x )+ ( - 250 )
d)( x-2 ) - ( 5 -x ) + ( 7 - x )
tìm x
(2x-5)/(175-25*6)20=100
Tìm x, biết:
a) (x- 25)-175 = 0;
b) 485 - ( 6.x + 60) = 5
c) 315 + (135 - x) = 450;
d) 346 + ( 210 - x) = 556
Tìm x, biết:
a) (x- 25)-175 = 0;
b) 485 - ( 6.x + 60) = 5
c) 315 + (135 - x) = 450;
d) 346 + ( 210 - x) = 556.
tìm X
70-5(x-3)=45
12+(5+x)=20
130-(100+x)=25
175+(30-x)=200
5(x+12)+22=92
x -48 . ( 120 .5 .14 ) : 60 + 25
420 + 65 .4 = ( x + 175 ):5 + 30
ai làm nhanh mình tick nhé
x-4867=(175.2050.70):25+24
420+65.4=(x+175):5+30
(32.15):2=(x+70):14-40
Tìm x biết
a)420+65.4=(x+175):5+30
b)x-4867=(175.2050.70):25+24