=> 315+2x-125-x=412
315+2x-125-x=412
315+2x+(-125)+(-x)=412
315+(-125)+2x+(-x)=412
190+2x+(-x)=412
x=412-190
x=222
đúng 100%
tick đúng nghe
kết bn vs mjk nha
Tim x biet :x-1/7+x-1/9+x-1/11+x-1/13=0
b) 315+(125-x) : 5=435 c) 315+(125-x)=435
Trả lời giúp mình gấp nhé
tim x biết
(10-x).42=12
315+(125-x)=500
(11-x).(4-x).(5-x)
tim so nguyen x biet ;
a) 3- ( 17 -x ) = 579 - ( 36 + 579 )
b) 25 - ( x + 5 ) = -315 - ( 15- 315)
c) 34 + ( 21 - x ) = ( 5747 - 30 ) - 5746
tim x thuoc Z biet
a) 17-(2x-11) = 12-3x
b) /2x-3/ = 7
c) (2x-1)^4 = 16
d) (17-2x )^3=-125
tim x,biet:
5x=125 32x=81 52x-3 -2.52=52.3
tim x biet 125-12*(x-17) = 89
tim x biet
5^ x + 1 = 125
tim x biet
125-3(x+4)=98
tim x biet x+34 la boi cua x+1 tim x biet 2x+1 la uoc cua x+82