Các câu hỏi tương tự
1)a)2x-13=25+6x
b)12-x=3x+6
c)40-(25-2x)=x
d)|x-3|=5
e)|x-3|+(x+2)+(x+1)=12
2)tính
a)(-1).(-2).(-3).(-4).(-5).[(-3)-(-5)]
b)1-2+3-4+5-6+...-98+99
3)tim x
a)(x-1).(y-2)=5
b)x.(y-3)=12
Tim x biet
x-(-25-17-2x)=6+x
45-/-27-(-25)-x/=7+27
tim so nguyen x biet x-(-25-17-2x)=6+x
tim x thuoc z:x-(-25-17-2x)=6+x
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 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
Tim x biet:
a)(2x . 6). (3x-18)=0
B)25+(15-x)=30
Tim so nguyen x biet : -x/2+2x/3+x+1/4+2x+1/6=3/8
1 tim x
2346:(25+x)=23
2(x-3)+5(x+4)=49
(2x-10)3.251007=52.52015