Word math problem

Question

A copper wire was 240 meters long after 60 meters was cut off it was double the length of a steel wire. How much longer was the copper wire than the steel wire at first.

My attempt to answer is 240-60= 180
That means 180 is double the length of the steel wire
Then i subtracted 240-180=60
My answer is 120 (60 + 60= 120)h

Answer 1

Call the initial length of the copper wire C₁. C₁=240m.

Cutting 60m. off gives 240m -60m = 180m. Let's call this C₂. 

Call the length of the steel wire S. 

So C₂= 180m=2S. 
Divide both sides by 2 to get 90m=S. 

Since C₁=240m, Subtract S from C₁: 240m.-90m.=150m. 

I think the copper wire was 150 meters longer than the steel wire at first.