9-(27-2x)=-|-27|-15
9-(27-2x)=-42
27-2x = 51
2x = 27 - 51
2x = -24
x = -24 : 2
x = -12
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so nguyen duong X thoa man 49-l-17-(-15)-Xl=-3+27
tap hop cac so nguyen x thoa man 45-|-27- ( -25) -x | = -7 +27
tap hop cac so nguyen x thoa man : 45 - |-27 - (-25) - x| = -7 + 27 la
so cac so nguyen x thoa man 15-|-2x+3|*|5+4x|=19 tim so cac so nguyen x giup minh nhe
!
Tim so tu nhien a lon nhat thoa man 27 chia cho 3 ; 38 chia cho a du 2 ; 49 chia cho a du 1
Tim X
3) -12 + (2x – 9) + x= 0
4) 11 + (15 - x) = 1
5) 4 - (27 - 3) = x - (13 - 4)
6) 8 - (x - 10) = 23 - (- 4 +12)
7) 105 – 5(10 – 5x) = -20
8) (x -1)(8-2x)(3x+123) = 0
9) (x2 - 25)(x+ 10) = 0
10) x(x2+5) =
tim cac so nguyen duong x,y thoa man 2x+3y=14
Tim so nguyen x thoa man x^2015-(-42-2x)=6+x^2015 là x=
bai 1:tim x
a,(27.x+6):3-11=9
b,(15-6x).35=36
c,(2x-6).47=49
giup minh voi !!!!!!!!!