Matemática, perguntado por mc290877, 3 meses atrás

RESOLVA AS EQUAÇOES
A)2x-4=3-6x

b)3x-5=2x+7

c)3x+7=2x+8

Soluções para a tarefa

Respondido por ACEITEJESUSEMSUAVIDA
6

Resposta:

a) x = 7/8

b) x = 12

c) x = 1

Explicação passo a passo:

2x -4 = 3 - 6x

2x + 6x = 3 + 4

8x = 7

x = 7/8

b) 3x - 5 = 2x +7

3x - 2x = 7 + 5

x = 12

c) 3x + 7 = 2x + 8

3x - 2x = 8 - 7

x = 1

Respondido por FXsyaz444
1

Olá meu parça !!!

Vamos Calcular passo a passo;

Pergunta:

1 - RESOLVA AS EQUAÇOES

A)2x-4=3-6x

b)3x-5=2x+7

c)3x+7=2x+8

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Resposta:

Calcule da seguinte forma !

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A)

 \textcolor{blue}{2x - 4 = 3 - 6x}

 \textcolor{blue}{2x - 4 =  - 6x + 3}

 \textcolor{blue}{2x - 4 + 6x = 3}

 \textcolor{blue}{2x + 6x = 3 + 4}

 \textcolor{blue}{8x = 3 + 4}

 \textcolor{blue}{8x = 7}

\large  \color{red} \:  \hookrightarrow{\boxed{\color{ightgreen}  {\boxed{\mathbf{  \:  \:  \:x =  \frac{7}{8}  \:  \:  \: }}}}}\hookleftarrow

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B)

 \textcolor{blue}{3x - 5 = 2x + 7}

 \textcolor{blue}{3x - 5 - 2x = 7}

 \textcolor{blue}{3x - 2x = 7 + 5}

 \textcolor{blue}{x = 7 + 5}

\large  \color{red} \:  \hookrightarrow{\boxed{\color{ightgreen}  {\boxed{\mathbf{  \:  \:  \: x = 12 \:  \:  \: }}}}}\hookleftarrow

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C)

 \textcolor{blue}{3x + 7 = 2x + 8}

 \textcolor{blue}{3x + 7 - 2x = 8}

 \textcolor{blue}{3x - 2x = 8 - 7}

 \textcolor{blue}{x = 8 - 7}

\large  \color{red} \:  \hookrightarrow{\boxed{\color{ightgreen}  {\boxed{\mathbf{  \:  \:  \: x = 1  \:  \:  \: }}}}}\hookleftarrow

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 \  \color{red}  \: \boxed{Bons \:  Estudos \:  !!!}

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