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

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

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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i believe that the answer is

b. y-1=-2(x-4)

hope this !