Question

b) Add the following terms:
7x - 5y - 9z, x - 3y - 3z, 5x - 3y + 2z with method​

Answer 1

Answer:

13x -11y -10z

Step-by-step explanation:

7x - 5y - 9z, x - 3y - 3z, 5x - 3y + 2z

7x + x + 5x -5y -3y -3y -9z -3z +2z ( by rearranging like terms )

13x -11y -10z (answer)

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Answer 2

Step-by-step explanation:

7x -5y-9z

+ x - 3y-3z

--------------------

8x-8y- 12z

+ 5x-3y+ 2z

---------------------

13x-11y -10z

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