ami33
ami33 ami33
  • 01-09-2021
  • Mathematics
contestada

8 - (3 + b) = b - 9
please show work

Respuesta :

edreher523owuxb8 edreher523owuxb8
  • 02-09-2021
b=7 I showed my work so I hope it helps!
Ver imagen edreher523owuxb8
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MrPOOH
MrPOOH MrPOOH
  • 09-09-2021

8 - (3 + b) = b - 9

Opening the brackets changes the symbol to it's opposite symbol, which gives us

8 - 3 - b = b - 9

By using the transposition method, we get

8 - 3 + 9 = b + b

or, 14 = 2b

or, 14/2 = b

or, 7 = b

The value of b is 7.

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