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Mathematics 7 Online
boredfr:

Transversal

boredfr:

|dw:1616955907374:dw|

boredfr:

Solve for y

jhonyy9:

do you know how many degrees has (3y+1) + (8x -61) = ?

jhonyy9:

and the same (3y +1) + (6x -13) = ? degrees

boredfr:

180?

jhonyy9:

exactly so in this way you get a sistem of two equations with x and y

jhonyy9:

what you need to solve it

jhonyy9:

(3y+1) + (8x -61) = 180 (3y +1) + (6x -13) = 180 solve this system for x and y

jhonyy9:

like a first idea subtract term by term the second equation from the first equation so what will get ?

boredfr:

Wait does x=24 ?

jhonyy9:

yes 2x -48 = 0 2x = 48 x = 24 perfect and now just find the y value

boredfr:

So then y=16?

jhonyy9:

(3y +1) + (6x -13) = 180 3y +1 +6*24 -13 = 180 y = 16 perfect

jhonyy9:

questions ?

boredfr:

No. Thank you for your help.

jhonyy9:

np anytime

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