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JaneMaciel
@JaneMaciel
April 2020
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Como resolver as equações 4x-y=10
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GabrielAw9
Método da adição:
x+2y=7 -4
4x-y=10
-4x-8y=-28
4x-y=10
-9y=-18 (-1)
9y=18
y=18/9
y=2
Basta substituirmos:
x+2y=7
x+2.2=7
x+4=7
x=7-4
x=3.
2 votes
Thanks 3
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Lista de comentários
x+2y=7 -4
4x-y=10
-4x-8y=-28
4x-y=10
-9y=-18 (-1)
9y=18
y=18/9
y=2
Basta substituirmos:
x+2y=7
x+2.2=7
x+4=7
x=7-4
x=3.