SOLUTION: The problem is 3x+7/2=8. Whats is x?

Algebra ->  Expressions-with-variables -> SOLUTION: The problem is 3x+7/2=8. Whats is x?      Log On


   

Question 182911This question is from textbook Prentice Hall Mathematics
: The problem is 3x+7/2=8. Whats is x? This question is from textbook Prentice Hall Mathematics

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

3x%2B7%2F2=8 Start with the given equation.


2%283x%29%2Bcross%282%29%287%2Fcross%282%29%29=2%288%29 Multiply EVERY term by the LCD 2 to clear out the fractions.


6x%2B7=16 Multiply and simplify.


6x=16-7 Subtract 7 from both sides.


6x=9 Combine like terms on the right side.


x=%289%29%2F%286%29 Divide both sides by 6 to isolate x.


x=3%2F2 Reduce.


----------------------------------------------------------------------

Answer:

So the answer is x=3%2F2 which in decimal form is x=1.5.