So here's the equation.

Solve:

I know x = 12 because of the answer key, but I keep getting the wrong answer. I really need a step-by-step explanation.

thanks

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- May 4th 2009, 12:44 PMdreamer09Simple fractional equation
So here's the equation.

Solve:

I know x = 12 because of the answer key, but I keep getting the wrong answer. I really need a step-by-step explanation.

thanks - May 4th 2009, 01:53 PMmasters
Hi dreamer09,

You have terms on the left side of your equation with the variable x in them. Combine these. On the right side, you just have numbers. Combine these.

Now, if you divide by 7, you will not get 12. You will, in fact, get . Maybe you miscopied the problem. Check it again. - May 4th 2009, 02:06 PMdreamer09
- May 4th 2009, 03:03 PMmasters
Ok, that's better. Combine the tems on the left side first:

Next, subtract from both sides of the equation.

Finally divide both sides by to arrive at your desired conclusion.

Now, if it's the arithmetic that's giving you problems, you might want to convert those mixed fractions to improper fractions. Might make it easier to solve.

Multiply each term by 4.

Subtract 15x from both sides

Divide by 13.