The answer for:
20)
6x-7+6x³-4x-10x³-4-8x - 2x²= −43−22−6−11
19)
8u+6+7u+(-10) + (-5u) + 8= 10+4
Answer:
-8 -8
Step-by-step explanation:
Because it is the most reasonable
4y=-20+3x and 4y=13.6x-20
so
-20+3x=13.6x-20
3x=13.6x
3=13.6 so it is wrong and system doesn’t have solution

The answer is C. (-6, -3)
Hope this helps.
r3t40
Answer:
$14.25 is the answer but to clear things up it is $2.25 for a bag of pop corn and $1.50 for a soda 5x2.25= 11.25 2x1.50=3 ,3+11.25=$14.25. and you can check that by using the amount for the pop corn and the soda in the first 2 equations :)