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maw [93]
3 years ago
12

Solve5(2x-3) = 3(x+4)

Mathematics
2 answers:
dusya [7]3 years ago
6 0
5(2x-3) = 3(x+4)\\
10x-15=3x+12\\
7x=27\\
x=\dfrac{27}{7}
balu736 [363]3 years ago
3 0
5(2x-3)=3(x+4) \\
10x-15=3x+12 \\
10x-3x=12+15 \\
7x=27 \\
x=\frac{27}{7}=3 \frac{6}{7}
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(UFRGS) Se 10x = 20y , atribuindo 0,3 para log2, então o valor de é
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Answer:

\frac{x}{y}=1.3

Step-by-step explanation:

<u>Informação recuperada:</u>

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log 2 , então o valor de x/y é

1) Primeiro, passando o 10 para o 2º membro como base do logaritmo:

10x=20y \Rightarrow x=log_{10}20y

2) Aplicando a propriedade do produto de logaritmo:

log(AB)= logA+logB

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3)  Como quero o quociente divido ambos os lados por y

\frac{x}{y}=\frac{1.3y}{y}\Rightarrow \frac{x}{y}=1.3

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Step-by-step explanation:

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