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Mathematics 9 Online
OpenStudy (anonymous):

6a=-5/7?? help please :D

OpenStudy (mathstudent55):

You are solving the equation for a?

OpenStudy (mathstudent55):

Notice that variable a is being multiplied by 6. What operation is the opposite of multiplication?

OpenStudy (anonymous):

it just tells me to simplify & division

OpenStudy (mathstudent55):

I know that. I am asking a question that will help you figure out what needs to be done to solve the equation for a. Once again, a is being multiplied by 6. You want a by itself. What operation is the opposite operation to multiplication?

OpenStudy (anonymous):

do i divide both sides by 6?

OpenStudy (mathstudent55):

Correct. Since division is the opposite operation to multiplication, you need to divide both sides by 6. That will give you just a on the left side.

OpenStudy (anonymous):

thank you very much that was very helpful

OpenStudy (mathstudent55):

Do you know how to divide -5/7 by 6 on the right side?

OpenStudy (mathstudent55):

You're very welcome.

OpenStudy (anonymous):

yes but do i multiply everything by 6 or just the numerator or denominator?

OpenStudy (mathstudent55):

This is how you divide a fraction by a number. Rewrite the first fraction as it is. Then write the divide sign. Then change the number into a fraction by simply writing the number over 1. Then rewrite the first fraction again, change the divide sign into multiply, and flip the second fraction. Now multiply the fractions. Multiply the numerators together and multiply the denominators together. Then reduce the fraction if necessary. Read the above carefully, then look at the example below.

OpenStudy (mathstudent55):

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