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Mathematics 9 Online
OpenStudy (anonymous):

What is the value of x?

OpenStudy (anonymous):

Vocaloid (vocaloid):

hint: m<N = m<L

OpenStudy (anonymous):

So you'd set up your equation "5x=x+20"

Directrix (directrix):

Opposite angles of a parallelogram are congruent, so yes. > So you'd set up your equation "5x=x+20" What comes next?

Directrix (directrix):

@s08438517 ^^^^^^

OpenStudy (anonymous):

I don't understand that

OpenStudy (anonymous):

You need to isolate x on one side of the equation.

OpenStudy (mathstudent55):

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OpenStudy (anonymous):

I still don't understand it, I'm just going to guess since no one can give me an answer that will help me.

OpenStudy (mathstudent55):

In a parallelogram, opposite angles are congruent. \(\angle N \cong \angle L\) Since \(m \angle N = 5x\) and \(m \angle L = x + 20\), we get, by substitution, \(5x = x + 20\)

OpenStudy (mathstudent55):

Now we need to solve this equation 5x = x + 20 The first step is to get all terms with x together on one side. We need to move the x from the right side o the left side. Since x is being added to 20, we subtract x from both sides.

OpenStudy (mathstudent55):

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