Question

Q14. How much is x - 2y + 3z greater than 3x + 5y - 7 ?​

Answer 1

Answer:

Required expression = (x – 2y + 3z) – (3x + 5y – 7)

= x – 2y + 3z – 3x – 5y + 7

Collecting positive and negative like terms together, we get

= x – 3x – 2y + 5y + 3z + 7

= –2x – 7y + 3z + 7

Step-by-step explanation:

hope you appreciate this ans

Answer 2

it is asked how much greater so subtract the terms

3x-5y+7-(x-2y+3z)

multiply the signs

3x-5y+7-x+2y-3z

add/subtract like terms

bring the like terms together

3x-x-5y+2y+7-3z

2x-3y+7-3z

Hope it helps you, good luck studying...