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Reuben has 26 new magazines to read.
Let M be the number of magazines he would have left to read after reading R of them.
Write an equation relating M to R. Then use this equation to find the number of magazines he would have left to read after reading 21 of them.
Equation:
Nomber left to read after reading 21 of them: magazines

Respuesta :

Answer:

5

Step-by-step explanation:

So the total number of magazines he has to read are 26

He has read R magazines = 21 magazines

So the equation relating M to R is

m + r = 26

We also know that r = 21

Hence, m + 21 = 26

subtract 21 from both sides

m = 5

The equation is m + r = 26

And, the number of magazines should be 5

Calculation of the number of magazines:

Since Reuben has 26 new magazines to read

And, here  M be the number of magazines he would have left to read after reading R

So here the equation is m + r = 26

Since r = 21

So, m + 21= 26

m = 5

Learn more about an equation here: https://brainly.com/question/24766671

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