\(\frac{x+10}{27}=\frac{x}{9}\)
\(\frac{x+10}{27}=\frac{3x}{27}\)
=>x+10=3x
10=3x-x
10=2x
x=10:2
x=5
\(\frac{x+10}{27}=\frac{x}{9}\)
=> \(\frac{x+10}{27}=\frac{x\cdot3}{27}\)
=> \(x+10=x\cdot3\)
Rồi bạn tự làm nhé ?
\(\frac{x+10}{27}=\frac{x}{9}\)
\(\frac{x+10}{27}=\frac{3x}{27}\)
=>x+10=3x
10=3x-x
10=2x
x=10:2
x=5
\(\frac{x+10}{27}=\frac{x}{9}\)
=> \(\frac{x+10}{27}=\frac{x\cdot3}{27}\)
=> \(x+10=x\cdot3\)
Rồi bạn tự làm nhé ?
Tìm x biết: \(\frac{x-1}{3}+\frac{3x-5}{2}+\frac{2x}{9}+\frac{-5x+3}{9}=\frac{210}{420}\)
Tìm x,y,z biết:
\(\frac{-4}{8}=\frac{x}{-10}=\frac{-7}{y}=\frac{z}{-24}\)
Tìm \(x\), biết :
a, \(6:\left(\frac{\frac{3}{5}x+3}{20}+9\right)=\frac{3}{5}\);
b, \(\left|x+3\right|=\left|-9\right|\).
Tìm x thuộc N, biết:
\(\frac{x-1}{x}+\frac{x-2}{x}+\frac{x-3}{x}+............+\frac{1}{x}=3\)
Tìm x, biết :
\(\frac{73-x}{98-x}=\frac{1}{6}\)
Tìm x, y, z biết:
\(\frac{x}{6}-\frac{1}{y}=\frac{1}{2}\)
Tìm x biết :
\(2016.x+x.\frac{1}{2016}-2016=\frac{1}{2016}\)
Tìm x thuộc Z, biết:
a)27<20+|x|<32
b)-12+[|x|+(-9)] = (-5)2 -21
c) x-{x- [x-(-x+1)]}=1
d) (x+3).(2x+10).(x4+5) =0
b) x−15−[(27+x)−(x−13)]=−1
Bài 3. Tìm số nguyên x , biết: a) 43+(9−21)=317−(x−317)
b) (15−x)+(x−12)=7−(−5+x)