Answer:a and c
Step-by-step explanation:
Answer:
x can be anything. (Infinite solutions)
Step-by-step explanation:
Expand:
Subtract 9 from each side:
Subtract 3x from both sides:
Both sides are equal, and hence this equation is true for any "x" value.
Answer:
you did not tell us the question
Step-by-step explanation:
Answer:
1,4
Step-by-step explanation:
Answer:
Step-by-step explanation:
Subtracting the second equation from the first yields .
This means that .
So, the solution is