(82 + 77 + 75 + X) /4 +83, solve for X

Question

We know the answer to this is 98 but can not figure out how to solve.  Help a 7th grade student solve step by step.

Answer 1

Well first off, you must have an equation to solve for x, and equations need an = sign.  I suspect the +83 at the end is supposed to be = 83.

 

(82+77+75+x)/4 = 83

 

Add the 82+77+75:

     (234+x)/4 = 83

Multiply both sides of the equation by 4:

     234 + x = 83×4   

     234 + x = 332

Subtract 234 from both sides:

     x = 332 - 234

     x = 98

 

Answer 2

sorry, there is nothing to solve. one solves equations, but you did not write an equation (it lacks an = sign).

 

Perhaps you can edit it to become a viable question.