MOnsterBunnyNi
.What is the value of y in parallelogram LMNO? There is a picture attahed i need help fast @ChmE



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MOnsterBunnyNi
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mathstudent55
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The diagonals of a parallelogram bisect each other.
That means y = 3x and y + 12 = 6x
You need to solve that system of equations.

MOnsterBunnyNi
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@mathstudent55 okay so do i plug in 3x iinto the equation

ChmE
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yes, you can substitute 3x into the 2nd equation to solve for x

mathstudent55
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Since y = 3x, plug that in for y of the other equation:
3x + 12 = 6x

MOnsterBunnyNi
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okay and do i combin like terms 3x and 6x

mathstudent55
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That will give you x, then plug the value of x into y = 3x, and you'll get y.

MOnsterBunnyNi
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i have 4x

MOnsterBunnyNi
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so y is 12 right

MOnsterBunnyNi
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@mathstudent55 y is 12

mathstudent55
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3x + 12 = 6x
12 = 3x
x = 4
y = 3x
y = 3(4)
y = 12