Question

subtract 7yz-6xy+5 from 8xy+6yz-9xz​

Answer 1

Answer:

8xy+6yz-9xz-(5-6xy+7yz)

5+2xy+13yz-9xz

Answer 2

Answer:

14xy-9xz-yz-5

Step-by-step explanation:

Notes: Multiplication of two negative numbers results into the positive number.

Subtraction of 7yz-6xy+5 from 8xy+6yz-9xz =

$8xy + 6yz - 9xz - (7yz - 6xy + 5) \\ = 8xy + 6yz - 9xz - 7yz + 6xy - 5\\ = (8xy + 6xy) - 9xz + (6yz - 7yz) - 5\\ = 14xy - 9xz - yz - 5$