12883850 12883850
  • 02-06-2022
  • Mathematics
contestada

I don't under stand what is wrong.

I dont under stand what is wrong class=

Respuesta :

CrystalQueen
CrystalQueen CrystalQueen
  • 02-06-2022

Answer:

In the first step, there is an issue when distributing the -3 to the terms inside of the parentheses. When multiplying the -3 to the -5, you would get an answer of +15, not -15.

The full correct process is:

(4m + 9) - 3(2m - 5) = 4m + 9 - 6m + 15

                                = 4m - 6m + 9 + 15

                                = -2m + 24

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