This is a special case. If after step two I would've gotten y=something... I would have plugged that new y value into my first equation
What myth? ask the question again and clip a screen shot of the question and select literature or history instead of mathematics
Answer:
Let the number be x
The expression above is written as
15x² = 20x
Divide both sides by x
We get
15x²/x = 20x/x
15x = 20
Divide both sides by 15
x = 20/15
x = 4/3
Hope this helps
---- x ----
| | 0.25x
---- x ----
x + x + 0.25x + 0.25x = 35
2.5x = 35
x = 35/2.5
x = 14
width is 14
length is 1/4 this.
length = 7/2