\(\frac{9}{25}x+\frac{3}{5}\left(\frac{9}{25}x+18\right)+\frac{9}{25}x+18=x\)
b) 9/5.x=18/25
e)x-20%.x=2,5
9 mũ 14 x 25 mũ 5 x 8 mũ 7/18 mũ 12 x 625 mũ 3 x 24 mũ 3
Tìm x:
a) x - (17 - 8) = 5 + (10 - 3x)
b) 25 - (30 +x) = x - (27 - 8)
c) (x-12) - 15 = (20 - 7) - (18 + x)
d) 9 - 25 = (7 - x) - (25 + 7)
( 125 x 27 x 360) : ( 18 x 9 x 25)
b) 9/5.x=18/25
e)x-20%.x=2,5
ai nhanh+đúng+ngắn gọn 3 tick
1: 9 - 25 - (7 - x) - (25 + 7)
2: -6 . x = 18
3: [(6 . x - 72) : 2- 84]. 28= 5628
a)25-(25-x)=12+(42-65)
b)31-(17+x)=18
c)5+l x+3 l = 9
d)x-(25+x)=13-x
e)15-(30+x)=x-(27-l-8l)
f)[(10-x).2+51]:3-2=3
g)(x-12)-15=20-(17+x)
h)-12-l13-xl=-21
i)8<lx-6l<9
tính hợp lý
a. (- 25) + (- 72) x 25 + (- 25) x 27
b. - 36 x 45 + 4 x 15 x (- 9) - 2 x 18 x (- 40)
c. 37 x ( 25 + 37) - 27 x ( 37 + 25)