<h3><em><u>Simplify -3y+2x-5y-7x is:</u></em></h3><h3>-8y - 5x</h3>
<em><u>Solution:</u></em>
<em><u>Given that, we have to simplify</u></em>

We can simplify the above expression by combining the like terms
Like terms are terms that has same variable ( with same exponent) with same or different coefficient
From given,

Here, like terms are -3y and -5y
And 2x and -7x
Group the like terms

Combine the like terms

Thus the given expression is simplified
30 = 60% of x
x being our variable, we need to figure out what x equals. Use the formula I put in the attachment. Multiply 30 by 60, and then divide the product by 100. That will give you the answer :)
It would be < and > ........
-41/25 I believe, I'm not sure why you put some addition signs in the inside of parentheses