13. Add 4x + 6y + 3z, (-6X 1 point
-5y +7z) and (9x + 5y - 112)
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Answer:
7x + 6y + 10z - 112
Step-by-step explanation:
4x + 6y + 3z + (- 6x - 5y + 7z) + 9x + 5y - 112
= 4x + 6y + 3z - 6x - 5y + 7z + 9x + 5y - 112
= 4x - 6x + 9x + 6y - 5y + 5y + 3z + 7z - 112
= 7x + 6y + 10z - 112
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