Question

Simplify (3x − 2y + 7z) − (2x − y − 9z)

Answer 1

Answer:

x - y +16z

Step-by-step explanation:

( 3x - 2y + 7z) - ( 2x - y -9z)

= 3x - 2y +7z -2x +y + 9z

= (3x -2x) + (-2y+y ) +(7z +9z)

= x - y +16z

Answer 2

Answer:

16z + x - y.

Step-by-step explanation:

(3x - 2y + 7z ) - ( 2x - y - 9z ).

3x - 2y + 7z - 2x + y + 9z.

3x - 2x - 2y + y + 7z + 9z.

x - y + 16z.

16z + x - y.

Therefore, the answer of ( 3x - 2y + 7z ) - ( 2x - y - 9z ) is 16z + x - y.