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3 years ago

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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Rainbow [258]

Complete question :

It takes 313131 employees and \$7500$7500dollar sign, 7500 to build a car, and it takes 191919 employees and \$4300$4300dollar sign, 4300 to build a motorcycle. Genghis Motors wants to spend more than \$84000$84000dollar sign, 84000 to build cars and motorbikes using at most 706706706 employees. Let CCC denote the number of cars they build and MMM the number of motorbikes they build. Write an inequality that represents the condition based on the number of employees. Write an inequality that represents the condition based on the number of dollars.

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Step-by-step explanation:

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M = number of motorcycles built

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3 years ago

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