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Mathematics 14 Online
OpenStudy (gudetamas):

help

OpenStudy (mathwizzard3):

With what?

OpenStudy (gudetamas):

OpenStudy (mathwizzard3):

srry that's not my strong point in math :/

OpenStudy (gudetamas):

oh ok np

OpenStudy (anonymous):

Can you think of any parallelogram property that may help us solve this problem?

OpenStudy (gudetamas):

4x+13 = 5x -12 ?

OpenStudy (anonymous):

yes thats correct

OpenStudy (anonymous):

now ry simplifying to solve for x

OpenStudy (anonymous):

try*

OpenStudy (gudetamas):

x=25

OpenStudy (anonymous):

yup!

OpenStudy (gudetamas):

i have to find y too

OpenStudy (anonymous):

yeah and we can use the same technique, try and set up a second equation in the same way

OpenStudy (gudetamas):

would it be 4y+7 = 3x - 8

OpenStudy (anonymous):

yes thats correct! and remember we now know what x is

OpenStudy (gudetamas):

could u help me with 4y+7 = 3x - 8

OpenStudy (anonymous):

yea sure, so remember we now know that x = 25 so we can substitute this in, to eliminate x and solve for y, so we get \[4y + 7 = 3(25) -8\]

OpenStudy (anonymous):

now we can simplify and solve for y

OpenStudy (gudetamas):

so 4y+7=75−8

OpenStudy (anonymous):

yes thats right

OpenStudy (gudetamas):

so y=15

OpenStudy (anonymous):

yes thats right

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