logan541972 logan541972
  • 01-02-2019
  • Mathematics
contestada

Solve -8|4b-6|+9=-39

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 01-02-2019

Answer:

b=3                        b=0

Step-by-step explanation:

-8|4b-6|+9=-39

Subtract 9 from each side

-8|4b-6|+9-9=-39-9

-8 | 4b-6| = -48

Divide by -8

-8/-8 | 4b-6| = -48/-8

| 4b-6| = 6

When solving the absolute value, there is a positive and a negative solutions

4b-6  = 6      and 4b-6 = -6

Add 6 to each side

4b-6+6 =6+6     4b-6+6 = -6+6

4b =12                  4b = 0

Divide by 4

4b/4 =12/4            4b/4 = 0/4

b=3                        b=0

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