how do I find the value of x in the following:

Question

(x-520,000)/[(800,000+880,000)/2]=

Answer 1

just start evaluating:

(x-520,000)/[(800,000+880,000)/2]
= (x-520,000)/[1,680,000/2]
= (x-520,000)/840,000
= x/840,000 - 26/41