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DaviLeiteLps
@DaviLeiteLps
December 2019
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Determine o valor de x na equação a seguir aplicando as técnicas resolutivas.
a) 3-2*(x+3)=x-18
b) 50+(3x-4)=2*(3x-4)+26
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Noobobo
3-2*(x+3)=x-18
3-2x-6=x-18
-2x-x=-18-3+6
-3x=-15
x=-15/-3
x=5
Menos com menos = mais
50+(3x-4)=2*(3x-4)+26
50+3x-4=6x-8+26
3x-6x=-8+26-50+4
-3x=-28
x=-28/-3
x=28/3
5 votes
Thanks 5
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Lista de comentários
3-2x-6=x-18
-2x-x=-18-3+6
-3x=-15
x=-15/-3
x=5
Menos com menos = mais
50+(3x-4)=2*(3x-4)+26
50+3x-4=6x-8+26
3x-6x=-8+26-50+4
-3x=-28
x=-28/-3
x=28/3