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inysia [295]
3 years ago
14

6r+7=13+7r I don’t know what it is

Mathematics
2 answers:
Sergio [31]3 years ago
6 0

6r+7=13+7r

Move 7r to the other side. Sign changes from +7r to -7r.

6r-7r+7=13+7r-7r

6r-7r+7=13

-r+7=13

Move +r to the other side. Sign changes from +7 to -7.

-r+7-7=13-7

-r=6

Multiply by -1 to get positive and for 6

-r(-1)=6(-1)

r=-6

Answer: r=-6

PilotLPTM [1.2K]3 years ago
6 0
<h3>Answer:</h3>

\large\boxed{r=-6}

<h3>Step-by-step explanation:</h3>

In this question, we would be solving for r.

What this means is that we need to figure out what r is.

We would be using this equation:

6r+7=13+7r

We will get the r variables to one side and solve from there.

Solve:

6r+7=13+7r\\\\\text{Subtract 7r to both sides}\\\\-r+7=13\\\\\text{Subtract 7 on both sides}\\\\-r=6\\\\\text{Divide by -1, since the variable r can't be a negative}\\\\r=-6

When you're done solving, you should get -6.

This means that r = -6

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
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