a) X x 2 x 3 = 4
X = 4 : 3 : 2
X = \(\frac{2}{3}\)
a, x*2*3=4 => x=4:3:2 =>x=2/3
b, x*9-1,5=30 =>x*9=31,5=>x=3,5
tìm x
x*2+x*3=4
x*9-1,5=30
tìm x
a, x * 2 + x * 3 = 4
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b, x * 9 - 1,5 = 30
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bài 1 thực hiện phép tính
( 4/5 + 3/10- 1/5 ) x6 :4/7
2007x 76 - 75 x 2007 - 2007
( 47,5 +8,6x 4,5 - 105)
bài 2 tìm x
a) x: 2/5 = 10
75% +30% x =4
( 9 xX + 2)x 3 -47=13
Tìm x
X×2+x×3=4 x×9-1,5=30
a, 3/4x X : 1/2 = 4/5
b,( 14-X: 6) x 7= 84
c,Xx 1,5 : 2,4 = 0,3
d,( 2 + 4/3 ) x 7/4 = 5-7/6
a)x*2+x*3=4 b)x*9-1,5=30
các bạn giúp mình với,mình cần gấp
x x 2 + x x 3 = 4 x x 9 - 1,5 = 30
Tìm X
x- 2/3 x (x+9) =1
Tìm x
a \(\frac{3}{4}+\frac{1}{4}xX=2\)
b X - \(\frac{2}{3}x\frac{9}{4}=2,5-\frac{1}{2}\)
c \(2xX+\frac{1}{3}=\frac{4}{3}\)
d \(X:\frac{2}{3}+0,75=\frac{9}{4}+3\)
e \(\frac{6}{4}:X+\frac{1}{2}=\frac{9}{4}x\frac{2}{3}\)
f \(Xx\frac{3}{5}-\frac{2}{5}=3\frac{3}{4}-1\)
