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LuanaAires
@LuanaAires
November 2019
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Me ajudem:
A)x+3y=19
3x+y=9
B)3x+5y=-22
X-y=-2
C)x+y=2
Y=3x
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medsim2017
A) x+3y=19
3x+y=9 (-3)
x+3y=19
-9x-3y=-27
-8x=-8
x=1
1+3y=19
3y=18
y=6
B)3x+5y=-22
X-y=-2(5)
3x+5y=-22
5x-5y=-10
8x=-32
x=-4
-4-y=-2
y=-2
C)x+y=2
Y=3x
x+3x=2
4x=2
x=1/2
y=3/2
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Lista de comentários
3x+y=9 (-3)
x+3y=19
-9x-3y=-27
-8x=-8
x=1
1+3y=19
3y=18
y=6
B)3x+5y=-22
X-y=-2(5)
3x+5y=-22
5x-5y=-10
8x=-32
x=-4
-4-y=-2
y=-2
C)x+y=2
Y=3x
x+3x=2
4x=2
x=1/2
y=3/2