Evaluate if x = 13 and y = –4.
3(2x – y)
i tried everything an i cant get the right answer Please i need help someone please
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OpenStudy (anonymous):
90
OpenStudy (♪chibiterasu):
Please don't give out straight answers, walk through it.
OpenStudy (anonymous):
how do you get 90
OpenStudy (♪chibiterasu):
@Jelia97 See?
OpenStudy (anonymous):
sorry in a rush helping others
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OpenStudy (anonymous):
all you have to do is plug in the missing variables as they give u
OpenStudy (anonymous):
gosh! i tried everythung an i kept getting 66
OpenStudy (♪chibiterasu):
x = 13 and y = –4.
3(2x – y)
First we have to plug-in the values of x and y:
3(2(13) - (-4))
First we have to multiply 2 by 13:
3(26 - (-4)
Now since we have - (-4) the -(- cancels out, making it +4:
3(26 + 4)
Now what do we do next?
OpenStudy (anonymous):
it couldnt be 90
OpenStudy (♪chibiterasu):
Do you know how the Distributive Property works?
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OpenStudy (anonymous):
sort of
OpenStudy (♪chibiterasu):
Well we distribute the 3 into the parenthesis:
3(26 + 4)\
78 + 12
90