Let's represent the unknown number with the variable x:
9x - 12
9x is the product of 9 and a number, and it is being subtracted by 12
Answer:
x - 6y + 10z
Step-by-step explanation:
7x + 3y - 5z - (8x - 3y + 5z)
= 7x + 3y - 5z - 8x + 3y - 5z
= 7x - 8x + 3y + 3y - 5z - 5z
= - x + 6y - 10z
OR
= -(- x + 6y - 10z)
= x - 6y + 10z

<u>Answer:</u>
The solution to the equation is: <u>±</u><u>2</u><u>.</u>
Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer: 42%
Step-by-step explanation: You count the squares and out of hundred count the one that are shaded and there is 42 shaded so 42%
Hope this helps <3