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Narasantos24
@Narasantos24
January 2020
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Resolva estes sistemas pelo método da substituição
a ) {x = 5y
{x + y = 12
b) {x - y = 10
{2x + 3y = 10
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oncers
A) x=5th
x+y=12
5y+y=12
6y=12
y=12÷6
y=2
x=5th
x=5×2
x=10
b) x=10+y
2 (10+y)+3y=10
5y=10
y=10÷5
y=2
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x+y=12
5y+y=12
6y=12
y=12÷6
y=2
x=5th
x=5×2
x=10
b) x=10+y
2 (10+y)+3y=10
5y=10
y=10÷5
y=2