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Princess
Mathematics
2 December, 17:08
2x - 2y = 12
29. - 3y = - 2
+4
Answers (
1
)
Keagan Hebert
2 December, 17:26
0
Olá boa tarde meu nome é "Guilherme" sou de Brasil e vou resolver a sua pergunta
a) 2x - 2y = 12
{ a 2
{ b 2
{ c 12
/ / = b elevado 2 - 4 a. c
/ / = (2) elevado 2 - 4. 24
/ / = 4 - 4. 24
/ / = 24
X = - b+ / / / = 2 - 5
2a 2
5
2
5
2
S = {20,10}
b) 29. - 3y = - 2
{ a = 29
{ b = - 3
{ c = - 2
/ / = b elevado 2 - 4 a. c
/ / = (-6) - 4. 58
/ / = - 10. 58
/ / = - 48
X = b + / / / = - 3 + 24
5
3
5
3
S = { 15,15}
Espero ter ajudado
2a 2
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