SOLUTION:
The middle horizontal line ( 5x - 20 ) is in the middle of the upper horizontal line ( 2x + 6 ) and lower horizontal line ( 4x + 2 ).
This means that the length of the middle horizontal line is half-way between the length of the upper and lower horizontal line.
Therefore:
( Upper horizontal line + Lower horizontal line ) / 2 = Middle horizontal line
( 2x + 6 + 4x + 2 ) / 2 = 5x - 20
x + 3 + 2x + 1 = 5x - 20
x + 2x - 5x = - 20 - 3 - 1
- 2x = - 24
x = - 24 / - 2
x = 24 / 2
x = 12
FINAL ANSWER:
The answer is:
x = 12
Hope this helps!
Hope you have a lovely day!
