Subtract the sum of 4x + 5y +9z and −2x + 6y − 4z from the sum of 3x – 4y + 8z and 5x + 7y – 4z.
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Answered by
3
Answer:
7X-8Y-Z
Step-by-step explanation:
SOLVING THE SUM
1. 3X-4Y+8Z (+) 5X +7Y-4Z
= 8X +3Y+4Z
2. 4X +5Y +9Z (+) -2X +6 Y -4 Z
= 2X+11 Y + 5Z
8X+3Y+4Z
(-) (- ) (-)
2X+11Y +5Z ( COMBINE LIKE TERMS AND CHANGE SYMBOLS OF SECOND TERMS)
------------------------
= 7X -8Y - Z
Answered by
1
Answer:
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