-2.(-3-4x)-3.(3x-7)=31
-2.(-3-4x)-3(3x-70=31
a, 6.(x-1)-5x=15
b, 2.(4x-2)-7x=16
c,-2.(-3-4x)-3.(3x-7)=31
a) 6*(x-1)-5x=15
b) -2*(-3-4x)-3*(3x-7)=31
c) 2*(4x-2)-7x=16
a) (31/20 - 26/45) . -36<x<(51/56+8/21+1/3)-8/13.
b)(2/11.13 + 2/13.15 + 2/15.17+...+2/53.55)- x + 22/2 - 1/31=4/3.
c)(x+5).(3x-12)>0
giúp mình vs nhé tick
1) 3x-(4+2x)=11
2) 4x+5=11+2x
3) 7x-17=31+x
A:(2x+3)^3=(2x+3)^8
B: (6-2x)^9=(6-2x)^31
C:|5-3x|=|11x+2|
tìm số nguyên x, biết
2(3x+2) - 15 = 4x +9
[(8x - 14 ):2 -2 ].31 =341
x+{(x-3)-[(x+3)-(--x-2)]} =x+1
tìm số tự nhiên x, biết:
a'x+2(3-x)-3(1-x)=9
b'(3x+5)-(x-10)+2x=31
tìm các số nguyên x biết:
a) 2.(5+3.x)+x=31
b) (3x-7)+2.(5-2x)+5x=19
