Question

What is the value of s

0.7 ( 3s + 4 ) - 1.1s = 7.9

Please explain step by step on what I could do to answer the value of s!

Answer 1

s = 5.1

Explanation:

So you start off with this:

0.7 ( 3s + 4 ) - 1.1s = 7.9

First, add the 1.1s from both sides. This is so that we can get rid of it on the left side.

0.7 ( 3s + 4 ) = 7.9 + 1.1s

Then, you're going to have to distribute the 0.7 on the left side, so that we can later deal with the s.

2.1s + 2.8 = 7.9 + 1.1s

Now, we have to get our variables on one side, and the constants on the other side. We can do this by subtracting 2.8 from both sides (to get rid of it on the left side) and subtracting 1.1s from both sides (to get rid of it on the right side).

s = 5.1

And ta-da! We have our answer, s = 5.1.

Let me know if you have any more questions!