determine whether the given number is a solution to the equation.
13t + 4 = -113; -9
can I please get a step by step instruction?

Question

determine whether the given number is a solution to the equation.
13t + 4 = -113; -9 
can I please get a step by step instruction?

whpalmer4 · Answer

It couldn't be easier :-)

You want to know if $t = -9$ is a solution to the equation $$13t+4=-113$$Plug it in and find out!
$$13(-9) + 4 = -113$$$$-117+4 = -113$$You tell me, is that going to be true?

whpalmer4 · Answer

Let's try a different one.  What if we thought $t = 9$ was also a solution?
$$13(9) + 4 = -113$$$$117+4 = -113$$$$121=-113$$Oops, that's not a solution!

anonymous · Answer

wow thanks so much I got it!!

whpalmer4 · Answer

Great!  it's an invaluable technique.  Do some work, get an answer, try it, see if it appears to answer the question correctly!  Helpful tip: before you do the check, reread the problem again to make sure you've really answered the right question, too.  Easy to get tangled up in a "word problem" and end up finding the answer to some related question, rather than the one you need to answer.