The solution is -0.609611 and -1.64, I do not think you can simply find this by factoring but the only way is graphing it
First reduce it.
10:7 In a sense that is about as far down as you can go
You could however make it 1 3/7 to 1
X = 36/5
Or x = 7.2
21 + x = 6x - 15
21 = 6x - 15 - x
21 = 5x - 15
21 + 15 = 5x
36 = 5x
36/5 = x
Yes it can. Because there are many ways you make a triangle.
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