=>x-96=428-x
=>2x=524
=>x=262
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Các câu hỏi tương tự
1/Tìm x
a/ x-96-(443-x)-15
Tìm x thuộc Z, biết:
a.(7x-11)3=25.52+200
b.(8x -11)3=25.52+200
c.(2x)3.3=192
d.8x=43
e.x10=x
h.x10=1x
k.x10=x
i.(2x-15)5=(2x-15)3
l.(x+1)5=96:3
Bài 1 : tìm x thuộc N ,biết
a) 82-7(3x-4)=47
b)97+4(5x-7)=129
c)(7x-13)27-12=15
d)(2x+3)13+23=140
đ)52.x+8x-5x=70
e) 19x-3x-x=60
g) 7(3x+1)-5(3x+1)=74
h)5(3x-1)+7(3x-1)=96
1, so sánh A;B biết: A=\(\left(\dfrac{\left(3\cdot\dfrac{2}{15}+\dfrac{1}{5}\right):2\cdot\dfrac{1}{2}}{\left(5\cdot\dfrac{3}{7}-2\cdot\dfrac{1}{4}\right):\dfrac{443}{56}}\right);B=\dfrac{1,2:\left(1\cdot\dfrac{1}{5}.1\cdot\dfrac{1}{4}\right)}{0,32+\dfrac{2}{25}}\)
A=(1+1/2).(1+1/3).(1+1/4)...(1×1/2009)
B=(1-1/2).(1-1/3)...(1-1/100)
B= 1/2.2/3.3/4...99/100
X+1/99+x+2/98+x+3/97+x+4/96
Tập A= {12; 15; 18; 21;.....; 90; 93; 96; 99}. Tập A có bao nhiêu phần tử ?
Tính nhanh :
a) 17 x 8 + 51 x 4
b) 2 x 2 x 3 x 5 x 19
c) 54 x 275 + 825 x 15 + 275
d) 100 - 99 + 98 - 97 + 96 - 95 + 94 - 93 + ... + 4 - 3 + 2
e) frac{167x198+98}{198x168-100}
g) frac{1}{1x2}+frac{1}{2x3}+frac{1}{3x4}+...+frac{1}{2019x2020}
h)frac{4}{2x4}+frac{4}{4x6}+frac{4}{6x8}+...+frac{4}{16x18}
k) 1,5 + 2,5 + 3,5 + 4,5 + 5,5 + 6,5 + 7,5 + 8,5
m) frac{1}{2}+frac{1}{6}+frac{1}{12}+frac{1}{20}+...+frac{1}{90}
n) frac{13}{50}+9%+frac{14}{100}+24%
Đọc tiếp
Tính nhanh :
a) 17 x 8 + 51 x 4
b) 2 x 2 x 3 x 5 x 19
c) 54 x 275 + 825 x 15 + 275
d) 100 - 99 + 98 - 97 + 96 - 95 + 94 - 93 + ... + 4 - 3 + 2
e) \(\frac{167x198+98}{198x168-100}\)
g) \(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+...+\frac{1}{2019x2020}\)
h)\(\frac{4}{2x4}+\frac{4}{4x6}+\frac{4}{6x8}+...+\frac{4}{16x18}\)
k) 1,5 + 2,5 + 3,5 + 4,5 + 5,5 + 6,5 + 7,5 + 8,5
m) \(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+...+\frac{1}{90}\)
n) \(\frac{13}{50}+9\%+\frac{14}{100}+24\%\)
/x-15/=x-15
1416 : 2132 . 3548 /1016 . 1532 . 796