Subtract 3x – 4y + 7z from the sum of x – 2y + 3z and -4x + 9y - 11z.
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Answer:
6x+11y-15z
Step-by-step explanation:
x-2y+3z+ (-4x +9y-11z)
= -3x +7y-8z then we will subtract this sum by given no
-3x+7y-8z-(3x-4y+7z)= 6x + 11y -15z
therefore the ans is 6x +11y - 15z
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