Answer:
x= 10
Step-by-step explanation:
Answer:
i think it would be x= 7 or -7
$6.78 because you can just add the costs of the items
Answer:
True
Step-by-step explanation:
Answer:
9x^2 -x +4
Step-by-step explanation:
3x^2 -x+7 +6x^2 -3
We need to combine like terms
I like to put them vertically
3x^2 -x+7
+6x^2 -3
-------------------
9x^2 -x +4