I think when you copied and pasted your question it re arranged itself
Answer:
a. Y=-2x+4
Step-by-step explanation:
6x+3y-9=3
+9 +9
6x+3y=12
-6x -6x
3y=-6x+12
/3 /3 /3
y=-2x+4
5x-2y = -10
Multiply by 6
= 30x -12y=-60
3x+6y = 66
Multiply by 2
= 6x+12y = 132
So
30x-12y=-60
6x+12y=132
Add those variables
36x= 72
X= 2
This would help
I know 15, 17, 18, and 19 are for sure true and that 16 is false. I’m not sure about 20
The answer is 4+8+16+32+64+128+256+512+1024: This is equivalent to 2044