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OpenStudy (anonymous):
2x+3y=18 x-y=5 equations of elimination. show workk!
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OpenStudy (anonymous):
We can multiple the 2nd equation by 2 and get 2x-2y=10. Then subtract that whole equation from the first 2x+3y = 18 -2x+2y=-10 ______________ 5y = 8 y= 8/5 Now substitute into one of the first equations and solve for x :) Enjoy.
OpenStudy (anonymous):
x=66/5;y=8/5
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