Not sure how to do this one
http://prntscr.com/81da15
3x-5=145

Question

Not sure how to do this one 
http://prntscr.com/81da15
3x-5=145 <---is this the setup

pooja195 · Answer

nin am i right >.>

nincompoop · Answer

m || n means that they are parallel

nincompoop · Answer

two different lines are parallel if their slopes are the same

pooja195 · Answer

x=50 right?

nincompoop · Answer

show your solution

pooja195 · Answer

3x-5=145 <--- this the setup 
3x=15<----add 5 to both sides
divide both sides by 3 
x=50

nincompoop · Answer

how did you get 15?

pooja195 · Answer

i meant 150

mathstudent55 · Answer

1. The angles are same side interior angles. If they are supplementary, the lines are parallel.
2. The angles are corresponding angles. If the angles are congruent, the lines are parallel.
3. The angles are alternate exterior angles. If the angles are congruent ,the lines are parallel.

mathstudent55 · Answer

The equation 
3x - 5 = 145
is correct.

mathstudent55 · Answer

3x - 5 = 145
Add 5 to both sides.
Then divide both sides by 3.

nincompoop · Answer

ye, then some details follow like the one on this website http://www.mathsisfun.com/geometry/parallel-lines.html but analytically, slopes are the same when lines are parallel

mathstudent55 · Answer

x = 50 is correct.

nincompoop · Answer

great work

pooja195 · Answer

Thank you @nincompoop and @mathstudent55 ^_^

mathstudent55 · Answer

You're welcome.

nincompoop · Answer

you don't need to keep giving me medals 
I prefer that you learn than my receiving of medals

pooja195 · Answer

:)