I Agree with you completely, but to be honest with you I Myself is more like the person who provides answers, rather than questions, but for the people who do just ask questions, I do feel you should take what this person said into consideration. ^.^
Find the money that both the girls will equally have.
76/2 = 38
So, imagine this, take 7 dollars from girl 2 and give it back to girl 1, you would essentially to the opposite of what the question said.
So, girl 2: 38 - 7 = 31
Girl 1: 38 + 7 = 45
To test if we got it right, add 31 and 46, and we get 76!
If it's $50 a meter, then the answer is:
x is the cost per meter
16x + 12x + 8x + 2x
But that answer is 5,075,020,100 and that is a ridiculously high number. I hope this helps even if it doesn't answer the question.
So for this, we will be simplifying √180 and √125 using the product rule of radicals (√ab = √a * √b)
Starting with √180: 
Now with √125: 
Now that we have our simplified radicals, our equation looks like this: 6√5 - 5√5 + √5 . Combine everything, and your answer will be 2√5.
Answer:
x = - 4
Step-by-step explanation:
-79 = 7x + 3(4x - 1)
-79 = 7x + 12x - 3 Distribute 3 to the paranthesis
-79 = 19x - 3 Add like terms
-76 = 19x Add 3 to both sides
- 4 = x Divide 19 to both sides
