lidiagaldamez
lidiagaldamez
07-05-2015
Mathematics
Answered
3y=-2x-19 -5x-3y=-2
Answer :
rsl1121
rsl1121
07-05-2015
3y=-2x-19 -5x-3y=-2-5x - (-2x - 19) = -2
-5x + 2x + 19 = -2
-3x = -21
x = 7
3y = -2(7) - 19
3y = -14 - 19
3y = 33
y = 11
Answer Link
Panoyin
Panoyin
08-05-2015
3y = -2x - 19 ⇒ 2x + 3y = -19
-5x - 3y = -2 ⇒
-5x - 3y = -2
-3x
=
-17
-3 -3
x = 5²/₃
-5x - 3y = -2
-5(5²/₃) - 3y = -2
-28¹/₃ - 3y = -2
+ 28¹/₃ + 28¹/₃
-3y
=
26¹/₃
-3 -3
y = -8⁷/₉
(x, y) = (5²/₃, -8⁷/₉)
Answer Link
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