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Answers by Ethan G.

You can write this as two equations by saying the positive and negative of the inside of the absolute value is equal to 15.  This will give 2y - 2 = 15 and -(2y-2) = 15.  For the first equation we add two to both sides to get 2y - 2 +2 = 15 + 2.  This givese you 2y = 17...

First let's get the variable y all onto one side.  We do this by subtracting y from each side to get 3y - y = y - y + 10.  This gives us 2y = 10.  Then we divide each side by 2 and get 2y/2 = 10/2 and get  y = 5.  We then check our answer by substituting 5 into...

|x| = 0 means that x has to be equal to either the negative or positive value.  This is called the absolute value.  0 is not negative or positive and therefore the equation has one solution.  The solution is x = 0.

x=52 /17+5(7+9) (answer)

In this problem the key idea you have to understand is order of operations.  Let's review:  Anything in parenthesis is done first.  Multiplication and division is done before addition and subtraction.  With these two rules we can do this problem.  x = 52/17 + 5(7+9)...

simplify x+3x (answer)

Let's consider a problem of adding apples and oranges.  If I have 3 apples and a friend gives you 2 more apples you have 3+2 = 5 apples.  Now let's say you have 3 apples and a friend gives you 4 oranges.  How many apples do you have?  You have 3 + 0 = 3 apples.  You...