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Mathematics 15 Online
OpenStudy (anonymous):

Find values of x and y for which ABCD must be a parallelogram. The diagram is not to scale?

OpenStudy (anonymous):

OpenStudy (anonymous):

@ganeshie8 ? I'm really confused

OpenStudy (anonymous):

So far I have 5y - 8 = y + 24 and 2x - 2 = x + 2

OpenStudy (anonymous):

Did I miss anything?

ganeshie8 (ganeshie8):

you're right ! diagonals in a parallelogram bisect each other

OpenStudy (anonymous):

Okay, do I solve them as a system of equations?

ganeshie8 (ganeshie8):

5y - 8 = y + 24

ganeshie8 (ganeshie8):

solve this for `y` first

OpenStudy (anonymous):

Okay, so 4y = 16 y=4

OpenStudy (anonymous):

And x=4

OpenStudy (anonymous):

Am I right @ganeshie8 ?

ganeshie8 (ganeshie8):

there is a small mistake

ganeshie8 (ganeshie8):

5y - 8 = y + 24 4y = 32 y = 8

ganeshie8 (ganeshie8):

^^

OpenStudy (anonymous):

Ohh, Ah I totally missed that, thanks though. Yeah I was just subtracting normally.

OpenStudy (anonymous):

Thanks @ganeshie8 !

ganeshie8 (ganeshie8):

np :) hope you can find the value of x

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