Is the ordered pair a solution to the given system of equations? Show your work for full credit.

(-3,15)

2/3x+5y=52

7x-8/5y=47
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1 Answer

?????????????? "ordered paer" ?????????? or iz zat "pare" ????????

line 1: (2/3)x +5y=52 or 2x+5y=156  or y=31.2 -0.4x

line 2: 7x -(8/5)y=47  or 35x -8y=235

line 2...35x -8*(31.2-0.4x)=235

35x +3.2x -249.6 =235

38.2x=235+249.6=484.6

x=484.6/38.2

x=12.685863

y=31.2 -0.4x=31.2-0.4*12.685863 =31.2 -5.0743452

y=26.125655
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