Respuesta :

saraharif006

Answer:

Step-by-step explanation:

4 ( 2a + 3 ) = -3 ( a - 1 ) + 31

8a + 12 = -3a + 3 + 31

8a + 3a = 3 + 31 - 12

11 a = 22

a = 22 / 11

a = 2

Hope this helps

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