Question

da uma ajudinha ae pfv

Answer 1

1.A)$\sf 3x - 6 = 12x - 4x \\\sf 3x - 6 = 8x \\\sf - 5x - 6 = 0 \\\sf - 5x = 6 \\\sf  \color{blue}{x = - \frac{6}{5} }$

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B) $\sf 9x - 3 = 6x + 4 \\\sf 3x - 3 = 4 \\\sf 3x = 4 + 3 \\\sf 3x = 7 \\\sf  \color{blue}{x = \frac{7}{3} }$

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C) $\sf 7x - 14 = 5x + 15 \\\sf 2x - 14 = 15 \\\sf 2x = 15 + 14 \\\sf 2x = 29 \\\sf  \color{blue}{x = \frac{29}{3} }$

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D) $\sf 6x - 3 = - 2x - 6 \\\sf 8x - 3 = - 6 \\\sf 8x = - 6 + 3 \\\sf 8x = - 3 \\\sf  \color{blue}{x = - \frac{3}{8} }$

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E) $\sf 5x - 3x - 6 = 15 \\\sf 2x - 6 = 15 \\\sf 2x = 15 + 6 \\\sf 2x = 21 \\\sf  \color{blue}{x = \frac{21}{2} }$