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I want to know how to do two step equations involing division for the seventh grade

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1 Answer

The first thing you need to do is isolate the variable. In other words, get the equation so that it looks like this:

a = _______

To do this, you will need to first subtract 7 from both sides of the equation:

a/5 + 7 = 10

       - 7 = -7

a/5 + 0 =  3

a/5 = 3

Now you need to multiply both sides by 5:

a/5 = 3

x 5 = x 5

1a = 15   (note: I wrote 1a so that you understand that what happened was a/5 x 5/1, and 5/5 is 1, so all      that is left is 1a)

so now you know that:

a = 15

DON'T FORGET TO CHECK YOUR WORK by subsituting 15 for a:

15/5 + 7 = 10

Is this true?

Comments

Perfect answer.