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Mathematics 9 Online
ah42632:

What is the value of LMNO?

ah42632:

jhonyy9:

do you wan ask y = ? i think

ah42632:

Idk tbh

jhonyy9:

use here too what i ve said on your last posted problem that the diagonales half each other

ah42632:

so i add 12 and 6? and that leaves x and y?

jhonyy9:

no using these expressions of the half diagonals you can write 6x = y+12 y = 3x solve this sistem for x and y

ah42632:

its confusing me. I tried subtracting 6 on both sides but i looked at it and it looks like if i woulda kept doing that then it woulda jus showed "x = y"

jhonyy9:

no bc. in the second equation you get y = 3x so just substitute the 3x in place of y inside the first equation and solve it for x

ah42632:

I got 4 for x

ah42632:

and y is 12

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