Question

X+X:0,2=1,35

Answer 1

\(x+x:0.2=1.35\)

\(x+x:\frac{1}{5}=1.35\)

\(x+5x=1.35\)

\(6x=1.35\)

\(x=1.35:6\)

\(x=0.225\)

Answer 2

\(x+x:0,2=1.35\)

\(x:1+x:0,2=1,35\)

\(x:\left(1+0,2\right)=1,35\)

\(x:1,2=1,35\)

\(x=1,35\cdot1,2=1,62\)

Answer 3

\(x\left(1+\frac{1}{0.2}\right)=1,35\)

\(6x=1,35\)

\(x=1,35:6=0,225\)

Answer 4

X*1+X*5=1,35

X*(1+5)=1,35

X*6=1,35

X=1,35:6

X=0,225

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Answer 5

\(X+X:0,2=1,35\)

\(\Rightarrow X+X=1,35\cdot0,2\)

\(\Rightarrow2X=0,27\)

\(\Rightarrow X=0,27:2\)

Vậy \(X=0,135\)

Answer 6

\(x+5x=1,35\)

\(x=1,35:6\)

\(x=0.225\)

Answer 7

X +X : 0,2 = 1,35 

X+X=1,35 +0,2

X+X=0,27

X²=0,27 : 2

X = 0,135 

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Answer 8

\(x+x:0,2=1,35\)

\(\Leftrightarrow2\times x:0,2=1,35\)

\(\Leftrightarrow2\times x=1,35\times0,2\)

\(\Leftrightarrow2\times x=0,27\)

\(\Leftrightarrow x=0,27:2\)

\(\Leftrightarrow x=0,135\)

Answer 9

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Answer 10

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