studentx1
studentx1
02-02-2017
Mathematics
contestada
-7x+y=-19
-2x+3y=-19
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httplyiah
httplyiah
02-02-2017
-7-2=-9
y+3y=4y
-9x+4y=-19
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Melodyzz
Melodyzz
02-02-2017
y=7x-19
-2x+3(7x-19)=-19
-2x+21x-57=-19
19x-57=-19
19x=38
x=2
-7(2) + y = -19
-14 + y = -19
y=-5
Answer Link
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