5 + 8x and 9x - 4 solve for x . I'll draw the angle at the bottom

Question

anonymous · Answer

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anonymous · Answer

@mathstudent55

mathstudent55 · Answer

Are you told the two lines are parallel?

anonymous · Answer

no it just says solve for x ... @mathstudent55

mathstudent55 · Answer

Are there little marks on the two lines?

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anonymous · Answer

yes , what does those mean ? @mathstudent55

mathstudent55 · Answer

Those little marks mean the lines are paralle.
If the lines are not parallel, you can't solve the problem bec you don't know anything about the angle measures.
If the lines are parallel, then the angles whose measure you have are called alternate exterior angles, and they are congruent, so 
5 + 8x = 9x - 4
Solve for x

anonymous · Answer

do I add 4 to each side ? @mathstudent55