<h2><u>
PLEASE MARK BRAINLIEST!</u></h2>
Answer:
Let's solve!
Step-by-step explanation:
2x + 6x - 9 = 0
\____/
8x - 9 = 0
+ 9 + 9
<u>8x </u> = <u>9</u>
8 8
x = 9/8 --or-- 
x = 1.125
I hope this helps!
https://rosemont.scusd.edu/sites/main/files/file-attachments/010516_answers_to_last_nights_hw.pdf
In standard form it would be x + 2y = 8.
x + 2y = 8
2y = -x + 8
y = -1/2x +4
Putting it like 7*t*s*3*r*t and multiplying like terms using the commutative property, we get 21*t²*s*r or 21rst²