schoolfun21 schoolfun21
  • 21-09-2022
  • Mathematics
contestada

NEED HELP ASAP ALSO READ PART A AND PART B

NEED HELP ASAP ALSO READ PART A AND PART B class=

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vintechnology vintechnology
  • 22-09-2022

she made an error in the third step. The correct answer is - 9.7b + 25

How to add linear expression?

(-4.23b + 13) - (5.47b - 12)

Therefore, let's open the bracket on the right side.

-4.23b + 13 - 5.47b + 12

Hence, let's combine the like terms

-4.23b + 13 - 5.47b + 12

-4.23b - 5.47b + 12 + 13

Do the arithmetic of the like terms

-4.23b - 5.47b + 12 + 13

- 9.7b + 25

Therefore, she made an error in the third step.

learn more on linear expression here: https://brainly.com/question/14725362

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