Jose has 19 new magazines to read. Let M be the number of magazines he would have left to read after reading of them. Write an equation M relating R to . Then use this equation to find the number of magazines he would have left to read after reading 11 of them
M = Number of unread magazines
R= Magazines already read
we need to find number of unread magazines (M) after reading 11 magazines (i.e. R = 11)
Unread magazines + magazines already read = Total number of new magazines
M + R = 19
Subtracting R from both sides
M + R - R = 19- R
M = 19 - R ..............required equation.
substituting R= 11
M = 19 - 11
M = 8
So there will be 8 magazines left to read.
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