Subtract 3x-4y-7z from the sum of x-3y+2z and -4x+9y-11z.
Sum of x – 3y + 2z and -4x + 9y – 112
= (x – 3y + 2z) + (-4x + 9y – 112)
= x – 4x – 3y + 9y + 2z – 112
= -3x + 6y – 92
The resultant expression has to be subtracted
i.e. 3x – 4y – 72
= (-3x + 6y – 92) – (3x – 4y – 72)
= -3x – 3x + 6y + 6y – 9z + 7z
= -6x + 10y – 2z
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.
