Xx2+2+2+2=64
Kb với mik nha
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x\(.\frac{2}{7}-\frac{2}{3}=\frac{1}{2}\)
= \(x.\frac{2}{7}=\frac{1}{2}+\frac{2}{3}\)
\(=x.\frac{2}{7}=\frac{7}{6}\)
\(x=\frac{7}{6}:\frac{2}{7}\)
x = \(\frac{49}{12}\)
x - x * 2 + x * 2 - 2 - 3 = 0
x - 2 = 0 + 3
x - 2 = 3
x = 3 + 2
x = 5
X + X x 2 + X x 2 - 2 - 3 = 0
X + X x 2 + X x 2 = 0 + 3 + 2 = 5
X x 1 + X x 2 + X x 2 = 5
X x (1 + 2 + 2) = 5
X x 5 = 5
X = 5 : 5
X = 1
\(3-\left(2x+\frac{1}{2}\right)\div\frac{1}{2}=2\)
\(\Leftrightarrow\left(2x+\frac{1}{2}\right)\div\frac{1}{2}=3-2\)
\(\Leftrightarrow\left(2x+\frac{1}{2}\right)\times2=1\)
\(\Leftrightarrow2x+\frac{1}{2}=\frac{1}{2}\)
\(\Leftrightarrow2x=\frac{1}{2}-\frac{1}{2}\)
\(\Leftrightarrow2x=0\)
\(\Leftrightarrow x=0\div2\)
\(\Leftrightarrow x=0\)
Vậy x = 0
\(3-\left(x\times2+\frac{1}{2}\right):\frac{1}{2}=2\)
\(\left(x\times2+\frac{1}{2}\right):\frac{1}{2}=3-2\)
\(\left(x\times2+\frac{1}{2}\right):\frac{1}{2}=1\)
\(x\times2+\frac{1}{2}=1\times\frac{1}{2}\)
\(x\times2+\frac{1}{2}=\frac{1}{2}\)
\(x\times2=\frac{1}{2}-\frac{1}{2}\)
\(x\times2=0\)
x = 0 : 2
x = 0
Vậy x = 0
Xx2 + 2 + 2 + 2 = 64
Xx2 = 64 - 2- 2 - 2
Xx2 = 58
X = 58 : 2
X = 29
\(x\times2+2+2+2=64\)
\(x\times2+6=64\)
\(x\times2=64-6\)
\(x\times2=58\)
\(x=58:2\)
\(x=29\)
~ Hok tốt ~