SOLUTION: My equation is 5x+8+3x-x+5=6x-3 I have gotten the answer which is -16 and checked it on the equation solver. What I do not understand is why I am not coming out with the correct an

Question 77777: My equation is 5x+8+3x-x+5=6x-3 I have gotten the answer which is -16 and checked it on the equation solver. What I do not understand is why I am not coming out with the correct answer when I check the problem by replacing x with -16? Can someone help me with checking the work?
I have 5(-16)+8+3(-16)-16+5=6(-16)-3 but it is not coming out equal on both sides.
Found 2 solutions by bucky, jim_thompson5910:
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
Your answer of x = -16 is correct.
.
Your "check" is:
.
5(-16) + 8 + 3(-16) -16 + 5 = 6(-16) - 3
.
The first three terms [5(-16) + 8 + 3(-16)] are correct. The next term should be -(-16) = +16
not -16. All the rest is OK.
.
Your check should further simplify to:
.
-80 + 8 - 48 + 16 + 5 = -96 - 3
.
and if you add the terms on each side you get - 99 = - 99
.
Hope this eases your mind. Just a minor error.

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
The answer of x=-16 is right but your check has a flaw. Your check says
Notice I've highlighted -16
when it should be

Notice I changed the -16 on the left to +16 so we get. The reason why is we have x=-16 and we plug it into

we get
Since we have it becomes
So our check comes to:

And that verifies our answer.
RELATED QUESTIONS
{{{x+6y=2}}} {{{5x+4y=36}}} I have been trying to use substitution to solve the... (answered by jim_thompson5910)
Hi Free Tutors: I really appreciate the help you give on this site. I plugged an... (answered by longjonsilver)
Last question of the day. I need to check my work on the following equation:... (answered by ikleyn)
3x-3/3x I have gotten the answer x-0/x. My question is: Do I keep the -0 or does it... (answered by Alan3354)
Says to Solve exponential equation using like bases. 2^3x+2=16^x I tried to solve it... (answered by Alan3354)
I have a problem with my homework. the answer in the book is not matching what I have... (answered by bucky)
I am working on an equation that I am to answer in standard form. Ok I understand that.... (answered by ankor@dixie-net.com)
I am learning chapter 3 section 6, which is on "steps for solving word problems". The... (answered by ankor@dixie-net.com)
Can you help me with this equation. My son came up with the wrong answer and when i used... (answered by funmath)