Question

subtract the sum of 5x - 4y +62 and - 8x - y + 32 and- 3x + 5y - 82

Answer 1

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(5x - 4y + 6z )+(-8x + y - 2z)

(5x - 4y + 6z )+(-8x + y - 2z)= 5x - 4y + 6z -8x + y - 22(5-8)x +(-4+1)y + (6-2)z

(5x - 4y + 6z )+(-8x + y - 2z)= 5x - 4y + 6z -8x + y - 22(5-8)x +(-4+1)y + (6-2)z= -3x - 3y + 4z

Adding 12x - y + 3z and -3x + 5y - 8z:(12x - y + 3z )+(-3x+ 5y - 8z)

(12x - y + 3z )+(-3x+ 5y - 8z)= 12x - y + 3z -3x + 5y - 8z

(12x - y + 3z )+(-3x+ 5y - 8z)= 12x - y + 3z -3x + 5y - 8z= (12-3)x +(-1+5)y + (3-8)z

= 9x +4y -5z

(9x +4y -5z)+(3x + 3y - 4z)= 9x+4y-5z+3x + 3y -4z

: (9+3)x +(4+3)y + (-5-4)z= 12x +7y-9z

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Answer 2

Given:

subtract the sum of 5x - 4y +62 and - 8x - y + 32 and- 3x + 5y - 82

Solution:

↪ sub, the sum of

5x- 4x + 6z

8x + y - 2z

_________________

3x - 3y + 4z

from

The sum of 12x - y + 32

- 3x + 154 - 82

_________________

9x + 4y - 5z