Well, isn't that just a happy little math problem we have here! To find out what "something" is, we can simply divide 300 by 5. So, 300 divided by 5 equals 60. That means "something" is 60. Happy calculating, my friend!
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[5x+13]
5x + 4 = 10x - 5 10x - 5x = 4 + 5 5x = 9 x = 1.8
If y equals 5x-15 and x equals 1 then the value of y comes out to be -10. So y equals 5x-15 is -10.
5x=10 5x/5=10/5 x=2
45-5x = 5x+55 -5x-5x = 55-45 -10x = 10 x = -1