Answer:
B, D
Step-by-step explanation:
Solve all equations:
A.

This is false equality, so this equation has no solutions.
B.

This equality is true for all values of x, so this equation has infinitely many solutions.
C.

This equation has the unique solution.
D.

This equality is true for all values of x, so this equation has infinitely many solutions.
E.

This equation has the unique solution.
Answer:
B
Step-by-step explanation:
5t < -15 (divide by 5 on each side)
t < -3
Answer:
x=1/3
Step-by-step explanation:
You have to isolate the variable, so you must first separate the constants from the variable. Add 3 on both sides to cancel out the minus three and to move it to the other side. Now you have 27x=9. It's pretty simple from there just use your calculator and divide 27x/27 and also 9/27. That leaves you with 1/3