Question

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Answer 1

Respuesta:

3a - 1 = -8

Explicación paso a paso:

• 3(x−1) + 1 + 3(x+3) + 1 + 3a + 1 = 2(3x+1)
• 3x −2 + 3(x+3) + 1 + 3a + 1 = 2(3x+1)
• 3x −2 + 3x + 9 + 1 + 3a + 1 = 2(3x+1)
• 6x −2 + 9 + 1 + 3a + 1 = 2(3x+1)
• 6x + 7 + 1 + 3a + 1 = 2(3x+1)
• 6x + 8 + 3a + 1 = 2(3x+1)
• 6x + 9 + 3a = 2(3x+1)
• 6x + 9 + 3a = 6x+2
• 9 + 3a = 6x + 2 − 6x
• 9 + 3a = 2
• 3a = −7
• a = $\frac{-7}{3}$

• a = $-\frac{7}{3}$                      

Hallar: 3a - 1

• $3( -\frac{7}{3} ) - 1$  
• −7 −1
• −8