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Umnica [9.8K]
3 years ago
10

In a class there are x amount of students. z amounts of these students are ( y+1 ) years old. The rest of the students are y yea

rs old. Write an expression for the sum of all their ages. Simplify.
Mathematics
1 answer:
Sliva [168]3 years ago
7 0

x = y + z

To simplify,

substitute z = y + 1

x = y + y + 1

x = 2y + 1

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