SOLUTION: I also need help with this one I suppose its the fraction part that throws me off, Thank you so much! Solve by substitution or addition method. 1st eq) {{{(3/4)x-(1/4)y=3/8}}}

Algebra ->  College  -> Linear Algebra -> SOLUTION: I also need help with this one I suppose its the fraction part that throws me off, Thank you so much! Solve by substitution or addition method. 1st eq) {{{(3/4)x-(1/4)y=3/8}}}       Log On


   

Question 58185: I also need help with this one I suppose its the fraction part that throws me off, Thank you so much!
Solve by substitution or addition method.
1st eq) %283%2F4%29x-%281%2F4%29y=3%2F8
2nd eq) %281%2F2%29x%2B%281%2F2%29y=3%2F4
Answer by hayek(51) About Me  (Show Source):
You can put this solution on YOUR website!
Solve eq 1 for x:
%283%2F4%29%2Ax=%281%2F4%29%2Ay%2B3%2F8
x=%284%2F3%29%281%2F4%29y%2B%284%2F3%29%283%2F8%29
green%28x=y%2F3%2B1%2F2%29
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Plug that into eq 2:
%281%2F2%29%28y%2F3%2B1%2F2%29%2By%2F2=3%2F4
%28y%2F6%29%2B%281%2F4%29%2By%2F2=3%2F4
y%281%2F6%2B1%2F2%29=%283%2F4%29-%281%2F4%29
y%284%2F6%29=1%2F2
y=%281%2F2%29%2A%283%2F2%29
highlight%28y=3%2F4%29
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Plug into our earlier equation for x:
x=%283%2F4%29%2F3%2B1%2F2
x=%283%2F4%29%2A%281%2F3%29%2B%281%2F2%29
highlight%28x=3%2F4%29
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