The notion of linear equation

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Systems of linear equations and matrices: Linear equations

The notion of linear equation

Which of the following equations in #x# can be reduced to linear equations by expanding brackets and adding or subtracting terms on both sides where needed?

\(-2x-2=6\)

\(x=y\)

\(2(x-2)=3(-2x-6)\)

\(2(x-2)=3(-2y-6)\)

\(x^2+2x+1=0\)

\(x^2+2x+1=x^2\)

\(x^2-y^2=0\)

\((x-2)^2-(x+2)^2 =-2\)

\(\e^{x-2}=\e^{2x}\)

\(x+xy+y-2=0\)

\(\frac{x}{y}=1\)

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