3/4x+14=8 what is x?

Question

help......I don't understand this one

Answer 1

To solve problems like this you need to isolate the variable, that is, get the equation into the form x = (something)  

 

First subtract 14 from both sides of the equation to get  

 

(3/4)x = 8 - 14 = -6

 

Then multiply both sides of the equation by the inverse of (3/4), which is (4/3), to get 

 

x = -6 * ( 4/3) = -24/3 = -8  

 

so x = -8 is the answer  

 

Check:  (3/4)*(-8) + 14 = -6 + 14 = 8.