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OpenStudy (rockycatsrule):
What is the solution to the system of equations? 5x+4y=8 x-2y=10 (_______ ,________) plz help me plz
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OpenStudy (error1603):
you have to equal x or y to solve so, 5x+4y=8 x-2y+10 (2) 5x+4y=8 2x-4y=20 ======= 7x=28 x=28/7 x=4
OpenStudy (rockycatsrule):
i am confused so is the answer 28 /7 or 4/7???
OpenStudy (error1603):
+4y and -4y will be cancelled.
OpenStudy (rockycatsrule):
k
OpenStudy (error1603):
to find y,you use any one original equation and plug in the value of x 5(4)+4y=8 20+4y=8 4y=8-20 4y=-12 y=-12/4 y=-3
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OpenStudy (error1603):
Understand?
OpenStudy (rockycatsrule):
no
OpenStudy (error1603):
x=4.y=-3
OpenStudy (error1603):
@rockycatsrule
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